[minor] removed the Grade Interval and Grading Structure doctype
diff --git a/erpnext/schools/doctype/grade_interval/__init__.py b/erpnext/schools/doctype/grade_interval/__init__.py
deleted file mode 100644
index e69de29..0000000
--- a/erpnext/schools/doctype/grade_interval/__init__.py
+++ /dev/null
diff --git a/erpnext/schools/doctype/grade_interval/grade_interval.json b/erpnext/schools/doctype/grade_interval/grade_interval.json
deleted file mode 100644
index c9c5949..0000000
--- a/erpnext/schools/doctype/grade_interval/grade_interval.json
+++ /dev/null
@@ -1,122 +0,0 @@
-{
- "allow_copy": 0, 
- "allow_import": 0, 
- "allow_rename": 0, 
- "beta": 0, 
- "creation": "2016-08-26 03:11:09.591049", 
- "custom": 0, 
- "docstatus": 0, 
- "doctype": "DocType", 
- "document_type": "", 
- "editable_grid": 1, 
- "engine": "InnoDB", 
- "fields": [
-  {
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fieldname": "grade_code", 
-   "fieldtype": "Data", 
-   "hidden": 0, 
-   "ignore_user_permissions": 0, 
-   "ignore_xss_filter": 0, 
-   "in_filter": 0, 
-   "in_list_view": 1, 
-   "in_standard_filter": 0, 
-   "label": "Grade Code", 
-   "length": 0, 
-   "no_copy": 0, 
-   "permlevel": 0, 
-   "precision": "", 
-   "print_hide": 0, 
-   "print_hide_if_no_value": 0, 
-   "read_only": 0, 
-   "remember_last_selected_value": 0, 
-   "report_hide": 0, 
-   "reqd": 1, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "unique": 0
-  }, 
-  {
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fieldname": "min_score", 
-   "fieldtype": "Percent", 
-   "hidden": 0, 
-   "ignore_user_permissions": 0, 
-   "ignore_xss_filter": 0, 
-   "in_filter": 0, 
-   "in_list_view": 1, 
-   "in_standard_filter": 0, 
-   "label": "Min Score", 
-   "length": 0, 
-   "no_copy": 0, 
-   "permlevel": 0, 
-   "precision": "1", 
-   "print_hide": 0, 
-   "print_hide_if_no_value": 0, 
-   "read_only": 0, 
-   "remember_last_selected_value": 0, 
-   "report_hide": 0, 
-   "reqd": 1, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "unique": 0
-  }, 
-  {
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fieldname": "grade_description", 
-   "fieldtype": "Small Text", 
-   "hidden": 0, 
-   "ignore_user_permissions": 0, 
-   "ignore_xss_filter": 0, 
-   "in_filter": 0, 
-   "in_list_view": 1, 
-   "in_standard_filter": 0, 
-   "label": "Grade Description", 
-   "length": 0, 
-   "no_copy": 0, 
-   "permlevel": 0, 
-   "precision": "", 
-   "print_hide": 0, 
-   "print_hide_if_no_value": 0, 
-   "read_only": 0, 
-   "remember_last_selected_value": 0, 
-   "report_hide": 0, 
-   "reqd": 0, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "unique": 0
-  }
- ], 
- "hide_heading": 0, 
- "hide_toolbar": 0, 
- "idx": 0, 
- "image_view": 0, 
- "in_create": 0, 
- "in_dialog": 0, 
- "is_submittable": 0, 
- "issingle": 0, 
- "istable": 1, 
- "max_attachments": 0, 
- "modified": "2016-12-14 12:54:56.902465", 
- "modified_by": "Administrator", 
- "module": "Schools", 
- "name": "Grade Interval", 
- "name_case": "", 
- "owner": "Administrator", 
- "permissions": [], 
- "quick_entry": 1, 
- "read_only": 0, 
- "read_only_onload": 0, 
- "sort_field": "modified", 
- "sort_order": "DESC", 
- "track_seen": 0
-}
\ No newline at end of file
diff --git a/erpnext/schools/doctype/grade_interval/grade_interval.py b/erpnext/schools/doctype/grade_interval/grade_interval.py
deleted file mode 100644
index c8ded13..0000000
--- a/erpnext/schools/doctype/grade_interval/grade_interval.py
+++ /dev/null
@@ -1,11 +0,0 @@
-# -*- coding: utf-8 -*-
-# Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and contributors
-# For license information, please see license.txt
-
-from __future__ import unicode_literals
-import frappe
-from frappe.model.document import Document
-
-class GradeInterval(Document):
-    def validate(self):
-        pass
\ No newline at end of file
diff --git a/erpnext/schools/doctype/grading_structure/__init__.py b/erpnext/schools/doctype/grading_structure/__init__.py
deleted file mode 100644
index e69de29..0000000
--- a/erpnext/schools/doctype/grading_structure/__init__.py
+++ /dev/null
diff --git a/erpnext/schools/doctype/grading_structure/grading_structure.js b/erpnext/schools/doctype/grading_structure/grading_structure.js
deleted file mode 100644
index 36f4504..0000000
--- a/erpnext/schools/doctype/grading_structure/grading_structure.js
+++ /dev/null
@@ -1,8 +0,0 @@
-// Copyright (c) 2016, Frappe Technologies Pvt. Ltd. and contributors
-// For license information, please see license.txt
-
-frappe.ui.form.on('Grading Structure', {
-	refresh: function(frm) {
-
-	}
-});
diff --git a/erpnext/schools/doctype/grading_structure/grading_structure.json b/erpnext/schools/doctype/grading_structure/grading_structure.json
deleted file mode 100644
index 3c30f29..0000000
--- a/erpnext/schools/doctype/grading_structure/grading_structure.json
+++ /dev/null
@@ -1,202 +0,0 @@
-{
- "allow_copy": 0, 
- "allow_import": 0, 
- "allow_rename": 1, 
- "autoname": "field:grading_system_name", 
- "beta": 0, 
- "creation": "2016-08-26 03:06:53.922972", 
- "custom": 0, 
- "docstatus": 0, 
- "doctype": "DocType", 
- "document_type": "", 
- "editable_grid": 1, 
- "engine": "InnoDB", 
- "fields": [
-  {
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fieldname": "grading_system_name", 
-   "fieldtype": "Data", 
-   "hidden": 0, 
-   "ignore_user_permissions": 0, 
-   "ignore_xss_filter": 0, 
-   "in_filter": 0, 
-   "in_list_view": 1, 
-   "in_standard_filter": 0, 
-   "label": "Grading System Name", 
-   "length": 0, 
-   "no_copy": 0, 
-   "permlevel": 0, 
-   "precision": "", 
-   "print_hide": 0, 
-   "print_hide_if_no_value": 0, 
-   "read_only": 0, 
-   "remember_last_selected_value": 0, 
-   "report_hide": 0, 
-   "reqd": 1, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "unique": 0
-  }, 
-  {
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fieldname": "column_break_2", 
-   "fieldtype": "Column Break", 
-   "hidden": 0, 
-   "ignore_user_permissions": 0, 
-   "ignore_xss_filter": 0, 
-   "in_filter": 0, 
-   "in_list_view": 0, 
-   "in_standard_filter": 0, 
-   "length": 0, 
-   "no_copy": 0, 
-   "permlevel": 0, 
-   "precision": "", 
-   "print_hide": 0, 
-   "print_hide_if_no_value": 0, 
-   "read_only": 0, 
-   "remember_last_selected_value": 0, 
-   "report_hide": 0, 
-   "reqd": 0, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "unique": 0
-  }, 
-  {
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fieldname": "description", 
-   "fieldtype": "Text", 
-   "hidden": 0, 
-   "ignore_user_permissions": 0, 
-   "ignore_xss_filter": 0, 
-   "in_filter": 0, 
-   "in_list_view": 1, 
-   "in_standard_filter": 0, 
-   "label": "Description", 
-   "length": 0, 
-   "no_copy": 0, 
-   "permlevel": 0, 
-   "precision": "", 
-   "print_hide": 0, 
-   "print_hide_if_no_value": 0, 
-   "read_only": 0, 
-   "remember_last_selected_value": 0, 
-   "report_hide": 0, 
-   "reqd": 0, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "unique": 0
-  }, 
-  {
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fieldname": "grading_intervals_section", 
-   "fieldtype": "Section Break", 
-   "hidden": 0, 
-   "ignore_user_permissions": 0, 
-   "ignore_xss_filter": 0, 
-   "in_filter": 0, 
-   "in_list_view": 0, 
-   "in_standard_filter": 0, 
-   "label": "Grading Intervals", 
-   "length": 0, 
-   "no_copy": 0, 
-   "permlevel": 0, 
-   "precision": "", 
-   "print_hide": 0, 
-   "print_hide_if_no_value": 0, 
-   "read_only": 0, 
-   "remember_last_selected_value": 0, 
-   "report_hide": 0, 
-   "reqd": 0, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "unique": 0
-  }, 
-  {
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fieldname": "grade_intervals", 
-   "fieldtype": "Table", 
-   "hidden": 0, 
-   "ignore_user_permissions": 0, 
-   "ignore_xss_filter": 0, 
-   "in_filter": 0, 
-   "in_list_view": 0, 
-   "in_standard_filter": 0, 
-   "label": "Grade Intervals", 
-   "length": 0, 
-   "no_copy": 0, 
-   "options": "Grade Interval", 
-   "permlevel": 0, 
-   "precision": "", 
-   "print_hide": 0, 
-   "print_hide_if_no_value": 0, 
-   "read_only": 0, 
-   "remember_last_selected_value": 0, 
-   "report_hide": 0, 
-   "reqd": 1, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "unique": 0
-  }
- ], 
- "hide_heading": 0, 
- "hide_toolbar": 0, 
- "idx": 0, 
- "image_view": 0, 
- "in_create": 0, 
- "in_dialog": 0, 
- "is_submittable": 0, 
- "issingle": 0, 
- "istable": 0, 
- "max_attachments": 0, 
- "modified": "2016-12-14 12:35:39.690256", 
- "modified_by": "Administrator", 
- "module": "Schools", 
- "name": "Grading Structure", 
- "name_case": "", 
- "owner": "Administrator", 
- "permissions": [
-  {
-   "amend": 0, 
-   "apply_user_permissions": 0, 
-   "cancel": 0, 
-   "create": 1, 
-   "delete": 1, 
-   "email": 1, 
-   "export": 1, 
-   "if_owner": 0, 
-   "import": 0, 
-   "is_custom": 0, 
-   "permlevel": 0, 
-   "print": 1, 
-   "read": 1, 
-   "report": 1, 
-   "role": "Academics User", 
-   "set_user_permissions": 0, 
-   "share": 1, 
-   "submit": 0, 
-   "write": 1
-  }
- ], 
- "quick_entry": 1, 
- "read_only": 0, 
- "read_only_onload": 0, 
- "sort_field": "modified", 
- "sort_order": "DESC", 
- "title_field": "grading_system_name", 
- "track_seen": 0
-}
\ No newline at end of file
diff --git a/erpnext/schools/doctype/grading_structure/grading_structure.py b/erpnext/schools/doctype/grading_structure/grading_structure.py
deleted file mode 100644
index 1b5d6a8..0000000
--- a/erpnext/schools/doctype/grading_structure/grading_structure.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# -*- coding: utf-8 -*-
-# Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and contributors
-# For license information, please see license.txt
-
-from __future__ import unicode_literals
-import frappe
-from frappe.model.document import Document
-from frappe import _
-from frappe.utils import cstr
-
-class GradingStructure(Document):
-    def validate(self):
-        grade_intervals = self.get("grade_intervals")
-        check_overlap(grade_intervals, self)
-
-#Check if any of the grade intervals for this grading structure overlap
-def check_overlap(grade_intervals, parent_doc):
-    for interval1 in grade_intervals:
-        for interval2 in grade_intervals:
-            if interval1.name == interval2.name:
-                pass
-            else:
-                if (interval1.from_score <= interval2.from_score and interval1.to_score >= interval2.from_score) or (interval1.from_score <= interval2.to_score and interval1.to_score >= interval2.to_score):
-                    frappe.throw(_("""The intervals for Grade Code {0} overlaps with the grade intervals for other grades. 
-                    Please check intervals {0} and {1} and try again""".format(interval1.grade_code, interval2.grade_code))) 
\ No newline at end of file
diff --git a/erpnext/schools/doctype/grading_structure/test_grading_structure.py b/erpnext/schools/doctype/grading_structure/test_grading_structure.py
deleted file mode 100644
index 0e36080..0000000
--- a/erpnext/schools/doctype/grading_structure/test_grading_structure.py
+++ /dev/null
@@ -1,12 +0,0 @@
-# -*- coding: utf-8 -*-
-# Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
-# See license.txt
-from __future__ import unicode_literals
-
-import frappe
-import unittest
-
-# test_records = frappe.get_test_records('Grading Structure')
-
-class TestGradingStructure(unittest.TestCase):
-	pass