Cease setting tooltip after (asynchronous!) call to the service

WpkgNotifier/TrayNotifier.cs

@@ -68,16 +68,12 @@ namespace WpkgNotifier
 
         void RequestSync(object sender, EventArgs e)
         {
-            SetToolTip("Syncing");
             messageChannel.HandleMessage(WpkgMessageRequestType.DO_SYNC);
-            SetToolTip("Done");
         }
 
         void RequestQuery(object sender, EventArgs e)
         {
-            SetToolTip("Querying");
             messageChannel.HandleMessage(WpkgMessageRequestType.RUN_QUERY);
-            SetToolTip("Done");
         }
 
         void Exit(object sender, EventArgs e)