remove a dump statement that was accidentally checked in

mail/base/content/mailWindow.js

@@ -382,7 +382,7 @@ nsMsgStatusFeedback.prototype =
         gTimelineService.markTimer("FolderLoading");
         gTimelineService.resetTimer("FolderLoading");
       }
-      dump("in stopMetors\n");
+
       this.ensureStatusFields();
       this.showStatusString(defaultStatus);