edje_external Multibuttonentry: Fix useless logic.

Summary:
Elm_Params_Multibuttonentry *mem = NULL;
if (!mem) return NULL;

Above code meaning that return null always... it's not intended i think.

Fix this weird code.

Reviewers: Hermet

Reviewed By: Hermet

Subscribers: cedric, jpeg

Differential Revision: https://phab.enlightenment.org/D4436

src/edje_external/elementary/elm_multibuttonentry.c

@@ -88,7 +88,7 @@ external_multibuttonentry_params_parse(void *data EINA_UNUSED,
    Edje_External_Param *param;
    const Eina_List *l;
 
-   //mem = external_common_params_parse(Elm_Params_Multibuttonentry, data, obj, params);
+   mem = calloc(1, sizeof(Elm_Params_Multibuttonentry));
    if (!mem)
      return NULL;