remove extra buttons labelled Make Maintenance Visit
diff --git a/erpnext/patches/jan_mar_2012/allocated_to_profile.py b/erpnext/patches/jan_mar_2012/allocated_to_profile.py
index 1d9e1aa..ac95c2b 100644
--- a/erpnext/patches/jan_mar_2012/allocated_to_profile.py
+++ b/erpnext/patches/jan_mar_2012/allocated_to_profile.py
@@ -10,5 +10,11 @@
 		WHERE fieldname='allocated_to'
 	""")
 
+	webnotes.conn.sql("""
+		DELETE from `tabDocField`
+		WHERE parent='Customer Issue'
+		AND label='Make Maintenance Visit'
+	""")
+
 	from webnotes.modules.module_manager import reload_doc
 	reload_doc('support', 'doctype', 'customer_issue')