Revert "Disable quick autotests on mac until qtbase is fixed"

This reverts commit 08582091059d8ba805487eae5277bc9abdc3d4de.

Task-number: QTBUG-35344

Conflicts:
	tests/auto/auto.pro

Change-Id: I9babc27c4c37900dd6603bd603e6bcf9e7f3d61f
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Reviewed-by: Liang Qi <liang.qi@digia.com>