ProjectExplorer: Fix unrelated tooltip appearing

... on clicking into the locator widget.
This removes a workaround for a different problem which is much less
visible. Real solution to be implemented later.
Amends 4c1b3c863c.

Change-Id: I7e7902c90367c8ed59af4e5aabaf5514207b00de
Reviewed-by: hjk <hjk@qt.io>

src/plugins/projectexplorer/projectexplorer.cpp

@@ -1346,6 +1346,9 @@ bool ProjectExplorerPlugin::initialize(const QStringList &arguments, QString *er
     generatorContainer->setOnAllDisabledBehavior(ActionContainer::Show);
     generatorContainer->menu()->setTitle(tr("Run Generator"));
     mbuild->addMenu(generatorContainer, Constants::G_BUILD_BUILD);
+
+    // FIXME: This menu will never become visible if the user tried to open it once
+    //        without a project loaded.
     connect(generatorContainer->menu(), &QMenu::aboutToShow, [menu = generatorContainer->menu()] {
         menu->clear();
         if (Project * const project = SessionManager::startupProject()) {
@@ -1353,7 +1356,6 @@ bool ProjectExplorerPlugin::initialize(const QStringList &arguments, QString *er
                 menu->addAction(generator.second, [project, id = generator.first] {
                     project->runGenerator(id);
                 });
-                menu->show();
             }
         }
     });