[IMP] survey: little optimization for user_input_line creation/update

Before:
  The method _get_mark called Model.exists() just after calling
  Model.browse
  This process makes 2 calls to database to do almost the same thing

Now:
  Removed the method _get_mark and directly call Model.browse

FP feedback

Task 2066646

addons/survey/models/survey_user.py

@@ -253,23 +253,18 @@ def _check_answer_type(self):
             if not fields_type.get(uil.answer_type, True):
                 raise ValidationError(_('The answer must be in the right type'))
 
-    def _get_mark(self, value_suggested):
-        label = self.env['survey.label'].browse(int(value_suggested))
-        mark = label.answer_score if label.exists() else 0.0
-        return mark
-
     @api.model_create_multi
     def create(self, vals_list):
         for vals in vals_list:
             value_suggested = vals.get('value_suggested')
             if value_suggested:
-                vals.update({'answer_score': self._get_mark(value_suggested)})
+                vals.update({'answer_score': self.env['survey.label'].browse(int(value_suggested)).answer_score})
         return super(SurveyUserInputLine, self).create(vals_list)
 
     def write(self, vals):
         value_suggested = vals.get('value_suggested')
         if value_suggested:
-            vals.update({'answer_score': self._get_mark(value_suggested)})
+            vals.update({'answer_score': self.env['survey.label'].browse(int(value_suggested)).answer_score})
         return super(SurveyUserInputLine, self).write(vals)
 
     @api.model