Revert "fix(test): manually select picked_qty since before_submit validates qty instead of auto filling it"

This reverts commit c2335ec0
diff --git a/erpnext/stock/doctype/pick_list/test_pick_list.py b/erpnext/stock/doctype/pick_list/test_pick_list.py
index 1c90f32..f552299 100644
--- a/erpnext/stock/doctype/pick_list/test_pick_list.py
+++ b/erpnext/stock/doctype/pick_list/test_pick_list.py
@@ -411,8 +411,6 @@
 			}
 		)
 		pick_list.set_item_locations()
-		for location in pick_list.locations:
-			location.picked_qty = location.stock_qty
 		pick_list.submit()
 
 		delivery_note = create_delivery_note(pick_list.name)
@@ -529,8 +527,6 @@
 			}
 		)
 		pick_list.set_item_locations()
-		for location in pick_list.locations:
-			location.picked_qty = location.stock_qty
 		pick_list.submit()
 		create_delivery_note(pick_list.name)
 		for dn in frappe.get_all(
@@ -575,8 +571,6 @@
 			}
 		)
 		pick_list_1.set_item_locations()
-		for location in pick_list_1.locations:
-			location.picked_qty = location.stock_qty
 		pick_list_1.submit()
 		create_delivery_note(pick_list_1.name)
 		for dn in frappe.get_all(
@@ -597,8 +591,7 @@
 		pl = create_pick_list(so.name)
 		# pick half the qty
 		for loc in pl.locations:
-			loc.stock_qty = loc.stock_qty /2
-			loc.picked_qty = loc.stock_qty
+			loc.picked_qty = loc.stock_qty / 2
 		pl.save()
 		pl.submit()
 
@@ -618,7 +611,6 @@
 		pl.save()
 		self.assertEqual(len(pl.locations), 2)
 		for item in pl.locations:
-			item.picked_qty = item.stock_qty
 			self.assertEqual(item.stock_qty, bundle_items[item.item_code] * 3)
 
 		# check picking status on sales order
@@ -644,8 +636,7 @@
 
 		pl = create_pick_list(so.name)
 		for loc in pl.locations:
-			loc.stock_qty = loc.stock_qty / 2
-			loc.picked_qty = loc.stock_qty
+			loc.picked_qty = loc.qty / 2
 
 		pl.save().submit()
 		so.reload()
@@ -658,8 +649,6 @@
 		self.assertEqual(so.per_delivered, 50)
 
 		pl = create_pick_list(so.name)
-		for loc in pl.locations:
-			loc.picked_qty = loc.stock_qty
 		pl.save().submit()
 		so.reload()
 		self.assertEqual(so.per_picked, 100)