Revert "fix(patch): Reload linked doctypes before renaming dt"

This reverts commit 4e2e8daca9bb9ece93acde85df38a69304fb43a2
because although it fixed it locally, didn't seem to do anything for erpnext CI
diff --git a/erpnext/patches/v13_0/healthcare_lab_module_rename_doctypes.py b/erpnext/patches/v13_0/healthcare_lab_module_rename_doctypes.py
index dcfbc38..9af0a8d 100644
--- a/erpnext/patches/v13_0/healthcare_lab_module_rename_doctypes.py
+++ b/erpnext/patches/v13_0/healthcare_lab_module_rename_doctypes.py
@@ -1,7 +1,6 @@
 from __future__ import unicode_literals
 import frappe
 from frappe.model.utils.rename_field import rename_field
-from frappe.model.rename_doc import get_link_fields
 
 def execute():
 	if frappe.db.exists('DocType', 'Lab Test') and frappe.db.exists('DocType', 'Lab Test Template'):
@@ -18,18 +17,9 @@
 		frappe.reload_doc('healthcare', 'doctype', 'lab_test_template')
 
 		for old_dt, new_dt in doctypes.items():
-			should_rename = (
-				frappe.db.table_exists(old_dt)
-				and not frappe.db.table_exists(new_dt)
-			)
-			if should_rename:
+			if not frappe.db.table_exists(new_dt) and frappe.db.table_exists(old_dt):
 				frappe.reload_doc('healthcare', 'doctype', frappe.scrub(old_dt))
-
-				linked_doctypes = {x.parent for x in get_link_fields(old_dt)}
-				for linked_doctype in linked_doctypes:
-					frappe.reload_doctype(linked_doctype, force=True)
 				frappe.rename_doc('DocType', old_dt, new_dt, force=True)
-
 				frappe.reload_doc('healthcare', 'doctype', frappe.scrub(new_dt))
 				frappe.delete_doc_if_exists('DocType', old_dt)