test: Remove QSKIP from tst_QToolButton::triggered()

This test actually passes on Mac OS X, so removing the QSKIP

Task-number: QTBUG-24374
Change-Id: I0b761ca9c30afc9d511e9962ee1c0958b863b374
Reviewed-by: J-P Nurmi <jpnurmi@digia.com>

tests/auto/widgets/widgets/qtoolbutton/tst_qtoolbutton.cpp

@@ -139,10 +139,6 @@ void tst_QToolButton::triggered()
     QCOMPARE(spy.count(),1);
     QCOMPARE(qvariant_cast<QAction *>(spy.at(0).at(0)), def);
 
-#ifdef Q_OS_MAC
-    QSKIP("QTBUG-24374 - This test hangs here on Mac OSX");
-#endif
-
     w = menu;
     QTimer::singleShot(30, this, SLOT(sendMouseClick()));
     tb.showMenu();