qtenv: Remove another menu bar related workaround on macOS from Qtenv

src/qtenv/qtenvapp.cc

@@ -1781,16 +1781,6 @@ void QtenvApp::initialSetUpConfiguration()
             // defaultConfig and runFilter are what were specified in either the omnetpp.ini file or as a command line argument
             RunSelectionDialog dialog(ini, opt->defaultConfig, opt->runFilter, mainWindow);
 
-#ifdef QT_OS_MAC
-            // Makes the Apple Menu work on Mac (together with TransformProcessType) right
-            // after launch even if there is no need to actually pick a configuration.
-            // Even if the dialog doesn't really appear on the screen (in fact I hope it
-            // doesn't, that would cause flickering), if shown first, it will do some
-            // magic with window focus passing when destroyed, which is similar to
-            // switching apps, which then makes the global menu work for some reason.
-            dialog.show();
-#endif
-
             // only show if needed, but if cancelled, stop.
             if (dialog.needsShowing() && !dialog.exec())
                 return;