[enahnce] Fetch doctype's roles in report if developer mode is on or is standard is no (#3591)

* [enahnce] Fetch doctype's role in report if developer mode is on or is standard is no

* Update report.py

lets not keep separate rules for developer_mode! - this is not discoverable by a new developer

frappe/core/doctype/report/report.py

@@ -49,7 +49,7 @@ class Report(Document):
 		delete_custom_role('report', self.name)
 
 	def set_doctype_roles(self):
-		if not self.get('roles'):
+		if not self.get('roles') and self.is_standard == 'No':
 			meta = frappe.get_meta(self.ref_doctype)
 			roles = [{'role': d.role} for d in meta.permissions if d.permlevel==0]
 			self.set('roles', roles)