[#3619] Fix compilation error, label at the end of a statement

sflphone-client-gnome/src/widget/imwidget.c

@@ -55,7 +55,6 @@ on_frame_loading_done (GObject *gobject, GParamSpec *pspec, gpointer user_data)
         case WEBKIT_LOAD_FIRST_VISUALLY_NON_EMPTY_LAYOUT:
         case WEBKIT_LOAD_FAILED:
             break;
-        default:
     }
 
 }