Fix get vote place error

Author: a26796879

extra-addons/vote_map_data/controllers/controllers.py

@@ -53,8 +53,6 @@ def vote_data_get_place(self, vote_type, city, place):
         dataset = http.request.env['vote_data'].sudo().search(
             [('vote_type', '=', vote_type), ('city', '=', city), ('place', '=', place)])
         districts = [i.district for i in dataset]
-        for i in dataset:
-            districts.append(i.district)
         results = json.dumps({'data': districts})
         return results