[Fix] chart of accounts root type is mandatory issue in charts.erpnext.com (#13467)

diff --git a/erpnext/accounts/utils.py b/erpnext/accounts/utils.py
index b214908..ab194f4 100644
--- a/erpnext/accounts/utils.py
+++ b/erpnext/accounts/utils.py
@@ -252,16 +252,11 @@
 	if not ac.parent_account:
 		ac.parent_account = args.get("parent")
 
-	if getattr(ac, 'is_root', None):
-		ac.parent_account=''
-
 	ac.old_parent = ""
 	ac.freeze_account = "No"
 	if cint(ac.get("is_root")):
 		ac.parent_account = None
 		ac.flags.ignore_mandatory = True
-	else:
-		ac.root_type = None
 
 	ac.insert()