ecore evas - fix leake and possile seg i added in cnp paste fix

previous commit fixed a bug but added this possible one. this fixes
that.

src/modules/ecore_evas/engines/x/ecore_evas_x.c

@@ -3830,9 +3830,9 @@ _search_fitting_type(Ecore_Evas *ee, Ecore_Evas_Engine_Data_X11 *edata, Ecore_Ev
                     }
                   eina_iterator_free(iter);
                }
-          }
              eina_stringshare_del(mime_type);
           }
+     }
    if (found_conversion)
      {
         _ecore_x_selection_request(ee->prop.window, selection, edata->selection_data[selection].requested_type);