chore: Remove code for Expense Claim from Project, Task, Delivery Trip

- Remove `total_expense_claim` field from Project and Task, will be installed with hrms setup

- Remove Expense Claim calculation from `update_costing` in project

- Remove `update_total_expense_claim` from task

- Remove Expense Claim references from employee form tour

- Remove 'Make Expense Claim' button from Delivery Trip, will only be available if hrms is installed

- Update delivery trip tests
diff --git a/erpnext/projects/doctype/project/project.json b/erpnext/projects/doctype/project/project.json
index 1790da4..37d98ad 100644
--- a/erpnext/projects/doctype/project/project.json
+++ b/erpnext/projects/doctype/project/project.json
@@ -38,7 +38,6 @@
   "project_details",
   "estimated_costing",
   "total_costing_amount",
-  "total_expense_claim",
   "total_purchase_cost",
   "company",
   "column_break_28",
@@ -280,12 +279,6 @@
    "read_only": 1
   },
   {
-   "fieldname": "total_expense_claim",
-   "fieldtype": "Currency",
-   "label": "Total Expense Claim (via Expense Claims)",
-   "read_only": 1
-  },
-  {
    "fieldname": "total_purchase_cost",
    "fieldtype": "Currency",
    "label": "Total Purchase Cost (via Purchase Invoice)",
@@ -458,7 +451,7 @@
  "index_web_pages_for_search": 1,
  "links": [],
  "max_attachments": 4,
- "modified": "2022-05-25 22:45:06.108499",
+ "modified": "2022-06-23 16:45:06.108499",
  "modified_by": "Administrator",
  "module": "Projects",
  "name": "Project",
diff --git a/erpnext/projects/doctype/project/project.py b/erpnext/projects/doctype/project/project.py
index b1fd1d9..7646078 100644
--- a/erpnext/projects/doctype/project/project.py
+++ b/erpnext/projects/doctype/project/project.py
@@ -211,26 +211,20 @@
 			self.status = "Completed"
 
 	def update_costing(self):
-		from_time_sheet = frappe.db.sql(
-			"""select
-			sum(costing_amount) as costing_amount,
-			sum(billing_amount) as billing_amount,
-			min(from_time) as start_date,
-			max(to_time) as end_date,
-			sum(hours) as time
-			from `tabTimesheet Detail` where project = %s and docstatus = 1""",
-			self.name,
-			as_dict=1,
-		)[0]
+		from frappe.query_builder.functions import Max, Min, Sum
 
-		from_expense_claim = frappe.db.sql(
-			"""select
-			sum(total_sanctioned_amount) as total_sanctioned_amount
-			from `tabExpense Claim` where project = %s
-			and docstatus = 1""",
-			self.name,
-			as_dict=1,
-		)[0]
+		TimesheetDetail = frappe.qb.DocType("Timesheet Detail")
+		from_time_sheet = (
+			frappe.qb.from_(TimesheetDetail)
+			.select(
+				Sum(TimesheetDetail.costing_amount).as_("costing_amount"),
+				Sum(TimesheetDetail.billing_amount).as_("billing_amount"),
+				Min(TimesheetDetail.from_time).as_("start_date"),
+				Max(TimesheetDetail.to_time).as_("end_date"),
+				Sum(TimesheetDetail.hours).as_("time"),
+			)
+			.where((TimesheetDetail.project == self.name) & (TimesheetDetail.docstatus == 1))
+		).run(as_dict=True)[0]
 
 		self.actual_start_date = from_time_sheet.start_date
 		self.actual_end_date = from_time_sheet.end_date
@@ -239,7 +233,6 @@
 		self.total_billable_amount = from_time_sheet.billing_amount
 		self.actual_time = from_time_sheet.time
 
-		self.total_expense_claim = from_expense_claim.total_sanctioned_amount
 		self.update_purchase_costing()
 		self.update_sales_amount()
 		self.update_billed_amount()
diff --git a/erpnext/projects/doctype/task/task.json b/erpnext/projects/doctype/task/task.json
index 8182208..141a99e 100644
--- a/erpnext/projects/doctype/task/task.json
+++ b/erpnext/projects/doctype/task/task.json
@@ -42,7 +42,6 @@
   "act_end_date",
   "sb_costing",
   "total_costing_amount",
-  "total_expense_claim",
   "column_break_20",
   "total_billing_amount",
   "sb_more_info",
@@ -280,13 +279,6 @@
    "read_only": 1
   },
   {
-   "fieldname": "total_expense_claim",
-   "fieldtype": "Currency",
-   "label": "Total Expense Claim (via Expense Claim)",
-   "options": "Company:company:default_currency",
-   "read_only": 1
-  },
-  {
    "fieldname": "column_break_20",
    "fieldtype": "Column Break"
   },
@@ -397,7 +389,7 @@
  "is_tree": 1,
  "links": [],
  "max_attachments": 5,
- "modified": "2022-01-29 13:58:47.005241",
+ "modified": "2022-06-23 16:58:47.005241",
  "modified_by": "Administrator",
  "module": "Projects",
  "name": "Task",
diff --git a/erpnext/projects/doctype/task/task.py b/erpnext/projects/doctype/task/task.py
index 4575fb5..f2600d3 100755
--- a/erpnext/projects/doctype/task/task.py
+++ b/erpnext/projects/doctype/task/task.py
@@ -156,13 +156,6 @@
 		if self.status == "Cancelled":
 			clear(self.doctype, self.name)
 
-	def update_total_expense_claim(self):
-		self.total_expense_claim = frappe.db.sql(
-			"""select sum(total_sanctioned_amount) from `tabExpense Claim`
-			where project = %s and task = %s and docstatus=1""",
-			(self.project, self.name),
-		)[0][0]
-
 	def update_time_and_costing(self):
 		tl = frappe.db.sql(
 			"""select min(from_time) as start_date, max(to_time) as end_date,
diff --git a/erpnext/setup/doctype/employee/employee.js b/erpnext/setup/doctype/employee/employee.js
index 7c62def..637993e 100755
--- a/erpnext/setup/doctype/employee/employee.js
+++ b/erpnext/setup/doctype/employee/employee.js
@@ -129,7 +129,7 @@
 	{
 		fieldname: "company",
 		title: "Company",
-		description: __("Select a Company this Employee belongs to. Other HR features like Payroll. Expense Claims and Leaves for this Employee will be created for a given company only.")
+		description: __("Select a Company this Employee belongs to.")
 	},
 	{
 		fieldname: "date_of_birth",
@@ -142,18 +142,8 @@
 		description: __("Select Date of joining. It will have impact on the first salary calculation, Leave allocation on pro-rata bases.")
 	},
 	{
-		fieldname: "holiday_list",
-		title: "Holiday List",
-		description: __("Select a default Holiday List for this Employee. The days listed in Holiday List will not be counted in Leave Application.")
-	},
-	{
 		fieldname: "reports_to",
 		title: "Reports To",
 		description: __("Here, you can select a senior of this Employee. Based on this, Organization Chart will be populated.")
 	},
-	{
-		fieldname: "leave_approver",
-		title: "Leave Approver",
-		description: __("Select  Leave Approver for an employee. The user one who will look after his/her Leave application")
-	},
 ];
diff --git a/erpnext/stock/doctype/delivery_trip/delivery_trip.js b/erpnext/stock/doctype/delivery_trip/delivery_trip.js
index 68cba29..a6fbb66 100755
--- a/erpnext/stock/doctype/delivery_trip/delivery_trip.js
+++ b/erpnext/stock/doctype/delivery_trip/delivery_trip.js
@@ -41,15 +41,6 @@
 	},
 
 	refresh: function (frm) {
-		if (frm.doc.docstatus == 1 && frm.doc.employee) {
-			frm.add_custom_button(__('Expense Claim'), function() {
-				frappe.model.open_mapped_doc({
-					method: 'erpnext.stock.doctype.delivery_trip.delivery_trip.make_expense_claim',
-					frm: cur_frm,
-				});
-			}, __("Create"));
-		}
-
 		if (frm.doc.docstatus == 1 && frm.doc.delivery_stops.length > 0) {
 			frm.add_custom_button(__("Notify Customers via Email"), function () {
 				frm.trigger('notify_customers');
diff --git a/erpnext/stock/doctype/delivery_trip/delivery_trip.py b/erpnext/stock/doctype/delivery_trip/delivery_trip.py
index 73b250d..88204ef 100644
--- a/erpnext/stock/doctype/delivery_trip/delivery_trip.py
+++ b/erpnext/stock/doctype/delivery_trip/delivery_trip.py
@@ -8,7 +8,6 @@
 from frappe import _
 from frappe.contacts.doctype.address.address import get_address_display
 from frappe.model.document import Document
-from frappe.model.mapper import get_mapped_doc
 from frappe.utils import cint, get_datetime, get_link_to_form
 
 
@@ -416,15 +415,3 @@
 	employee = frappe.db.get_value("Driver", driver, "employee")
 	email = frappe.db.get_value("Employee", employee, "prefered_email")
 	return {"email": email}
-
-
-@frappe.whitelist()
-def make_expense_claim(source_name, target_doc=None):
-	doc = get_mapped_doc(
-		"Delivery Trip",
-		source_name,
-		{"Delivery Trip": {"doctype": "Expense Claim", "field_map": {"name": "delivery_trip"}}},
-		target_doc,
-	)
-
-	return doc
diff --git a/erpnext/stock/doctype/delivery_trip/test_delivery_trip.py b/erpnext/stock/doctype/delivery_trip/test_delivery_trip.py
index 555361a..ed699e3 100644
--- a/erpnext/stock/doctype/delivery_trip/test_delivery_trip.py
+++ b/erpnext/stock/doctype/delivery_trip/test_delivery_trip.py
@@ -10,7 +10,6 @@
 import erpnext
 from erpnext.stock.doctype.delivery_trip.delivery_trip import (
 	get_contact_and_address,
-	make_expense_claim,
 	notify_customers,
 )
 from erpnext.tests.utils import create_test_contact_and_address
@@ -34,10 +33,6 @@
 		frappe.db.sql("delete from `tabDelivery Trip`")
 		return super().tearDown()
 
-	def test_expense_claim_fields_are_fetched_properly(self):
-		expense_claim = make_expense_claim(self.delivery_trip.name)
-		self.assertEqual(self.delivery_trip.name, expense_claim.delivery_trip)
-
 	def test_delivery_trip_notify_customers(self):
 		notify_customers(delivery_trip=self.delivery_trip.name)
 		self.delivery_trip.load_from_db()