editing example texts now as I see it could look like.

src/message/simple_edits.py

@@ -39,12 +39,6 @@ class AddToLabelList(NoReset):
         return False
 
 
-class EditExampleTranslation(QuestionMessage):
-    def update_model(self, model):
-        example = self.get_arg(0, Example)
-        example.text = self.new_text
-    
-    
 class AddSense(Message):
     def update_model(self, model):
         sense = Sense.new_empty()