clean code
diff --git a/erpnext/buying/doctype/purchase_order/purchase_order.js b/erpnext/buying/doctype/purchase_order/purchase_order.js
index bbec981..a51246b 100644
--- a/erpnext/buying/doctype/purchase_order/purchase_order.js
+++ b/erpnext/buying/doctype/purchase_order/purchase_order.js
@@ -15,8 +15,6 @@
 	},
 
 	onload: function(frm) {
-		set_schedule_date(frm);
-
 		erpnext.queries.setup_queries(frm, "Warehouse", function() {
 			return erpnext.queries.warehouse(frm.doc);
 		});
@@ -109,7 +107,12 @@
 	},
 
 	validate: function() {
-        set_schedule_date(cur_frm);
+		// set default schedule date as today if missing.
+		(this.frm.doc.items || []).forEach(function(d) {
+			if(!d.schedule_date) {
+				d.schedule_date = frappe.datetime.nowdate();
+			}
+		})
 	},
 
 	make_stock_entry: function() {
@@ -198,10 +201,7 @@
 
 	items_add: function(doc, cdt, cdn) {
 		var row = frappe.get_doc(cdt, cdn);
-		if(doc.schedule_date) {
-			row.schedule_date = doc.schedule_date;
-			refresh_field("schedule_date", cdn, "items");
-		}
+		this.frm.script_manager.copy_from_first_row("items", row, ["schedule_date"]);
 	},
 
 	unclose_purchase_order: function(){
@@ -225,9 +225,7 @@
 				cur_frm.cscript.calculate_taxes_and_totals();
 			}
 		})
-	},
-
-	items_on_form_rendered: set_schedule_date(cur_frm),
+	}
 
 });
 
@@ -270,18 +268,8 @@
 	}
 }
 
-function set_schedule_date(frm) {
-    if(!frm.doc.schedule_date){
-        frm.doc.schedule_date = frappe.datetime.add_days(frappe.datetime.now_date(), 1);
-    }
-    erpnext.utils.copy_value_in_all_row(frm.doc, frm.doc.doctype, frm.doc.name, "items", "schedule_date");
-}
-
 cur_frm.cscript.schedule_date = function(doc, cdt, cdn) {
-    var row = frappe.get_doc(cdt, cdn);
-    if(row.schedule_date){
-	    set_schedule_date(cur_frm);
-	}
+	erpnext.utils.copy_value_in_all_row(doc, cdt, cdn, "items", "schedule_date");
 }
 
 frappe.provide("erpnext.buying");
diff --git a/erpnext/buying/doctype/purchase_order/purchase_order.json b/erpnext/buying/doctype/purchase_order/purchase_order.json
index 3a64f20..b9a5f81 100644
--- a/erpnext/buying/doctype/purchase_order/purchase_order.json
+++ b/erpnext/buying/doctype/purchase_order/purchase_order.json
@@ -294,37 +294,6 @@
   },
   {
    "allow_bulk_edit": 0,
-   "allow_on_submit": 1,
-   "bold": 0,
-   "collapsible": 0,
-   "columns": 0,
-   "default": "",
-   "fieldname": "schedule_date",
-   "fieldtype": "Date",
-   "hidden": 0,
-   "ignore_user_permissions": 0,
-   "ignore_xss_filter": 0,
-   "in_filter": 0,
-   "in_global_search": 0,
-   "in_list_view": 0,
-   "in_standard_filter": 0,
-   "label": "Reqd By Date",
-   "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_bulk_edit": 0,
    "allow_on_submit": 0, 
    "bold": 0, 
    "collapsible": 0, 
diff --git a/erpnext/buying/doctype/purchase_order/tests/test_purchase_order.js b/erpnext/buying/doctype/purchase_order/tests/test_purchase_order.js
index 6605a65..e6529e6 100644
--- a/erpnext/buying/doctype/purchase_order/tests/test_purchase_order.js
+++ b/erpnext/buying/doctype/purchase_order/tests/test_purchase_order.js
@@ -13,18 +13,9 @@
 				{items: [
 					[
 						{"item_code": 'Test Product 4'},
-						{"schedule_date": frappe.datetime.add_days(frappe.datetime.now_date(), 2)},
-						{"expected_delivery_date": frappe.datetime.add_days(frappe.datetime.now_date(), 5)},
-						{"qty": 5},
-						{"uom": 'Unit'},
-						{"rate": 100},
-						{"warehouse": 'Stores - '+frappe.get_abbr(frappe.defaults.get_default("Company"))}
-					],
-					[
-						{"item_code": 'Test Product 1'},
 						{"schedule_date": frappe.datetime.add_days(frappe.datetime.now_date(), 1)},
 						{"expected_delivery_date": frappe.datetime.add_days(frappe.datetime.now_date(), 5)},
-						{"qty": 2},
+						{"qty": 5},
 						{"uom": 'Unit'},
 						{"rate": 100},
 						{"warehouse": 'Stores - '+frappe.get_abbr(frappe.defaults.get_default("Company"))}
@@ -39,19 +30,12 @@
 		() => {
 			// Get supplier details
 			assert.ok(cur_frm.doc.supplier_name == 'Test Supplier', "Supplier name correct");
-			assert.ok(cur_frm.doc.schedule_date == frappe.datetime.add_days(frappe.datetime.now_date(), 1), "Schedule Date correct");
 			assert.ok($('div.control-value.like-disabled-input.for-description').text().includes('Contact 3'), "Contact display correct");
 			assert.ok(cur_frm.doc.contact_email == 'test@supplier.com', "Contact email correct");
 			// Get item details
 			assert.ok(cur_frm.doc.items[0].item_name == 'Test Product 4', "Item name correct");
 			assert.ok(cur_frm.doc.items[0].description == 'Test Product 4', "Description correct");
 			assert.ok(cur_frm.doc.items[0].qty == 5, "Quantity correct");
-			assert.ok(cur_frm.doc.items[0].schedule_date == frappe.datetime.add_days(frappe.datetime.now_date(), 2), "Schedule Date correct");
-
-			assert.ok(cur_frm.doc.items[1].item_name == 'Test Product 1', "Item name correct");
-			assert.ok(cur_frm.doc.items[1].description == 'Test Product 1', "Description correct");
-			assert.ok(cur_frm.doc.items[1].qty == 2, "Quantity correct");
-			assert.ok(cur_frm.doc.items[1].schedule_date == cur_frm.doc.schedule_date, "Schedule Date correct");
 			// Calculate total
 			assert.ok(cur_frm.doc.total == 500, "Total correct");
 			// Get terms
diff --git a/erpnext/buying/doctype/purchase_order_item/purchase_order_item.json b/erpnext/buying/doctype/purchase_order_item/purchase_order_item.json
index 5ba57b6..c4d86a3 100755
--- a/erpnext/buying/doctype/purchase_order_item/purchase_order_item.json
+++ b/erpnext/buying/doctype/purchase_order_item/purchase_order_item.json
@@ -148,7 +148,7 @@
    "ignore_xss_filter": 0, 
    "in_filter": 0, 
    "in_global_search": 0, 
-   "in_list_view": 1,
+   "in_list_view": 0,
    "in_standard_filter": 0, 
    "label": "Reqd By Date", 
    "length": 0, 
diff --git a/erpnext/patches/v8_11/set_schedule_date_for_purchase_order.py b/erpnext/patches/v8_11/set_schedule_date_for_purchase_order.py
deleted file mode 100644
index 3c733b1..0000000
--- a/erpnext/patches/v8_11/set_schedule_date_for_purchase_order.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# Copyright (c) 2017, Frappe and Contributors
-# License: GNU General Public License v3. See license.txt
-
-from __future__ import unicode_literals
-import frappe
-
-def execute():
-	frappe.reload_doctype("Purchase Order")
-	frappe.reload_doctype("Purchase Order Item")
-
-	if not frappe.db.has_column("Purchase Order", "schedule_date"):
-		return
-
-	#Update only submitted PO
-	for po in frappe.get_all("Purchase Order", filters= [["docstatus", "=", 1]], fields=["name"]):
-		purchase_order = frappe.get_doc("Purchase Order", po)
-		if purchase_order.items:
-			if not purchase_order.schedule_date:
-				purchase_order.schedule_date = purchase_order.items[0].schedule_date
-				purchase_order.save()
\ No newline at end of file