Cleanup: misleading code from aa71414dfc

This branch was previously run when the action had been handled,
since action checks were removed it was running. This assignment
does nothing but shouldn't be kept.

source/blender/windowmanager/intern/wm_event_system.c

@@ -3197,9 +3197,6 @@ static int wm_handlers_do(bContext *C, wmEvent *event, ListBase *handlers)
         win->event_queue_check_click = false;
       }
     }
-    else {
-      win->event_queue_check_drag = false;
-    }
   }
   else if (ISMOUSE_BUTTON(event->type) || ISKEYBOARD(event->type)) {
     /* All events that don't set wmEvent.prev_type must be ignored. */