Fix symbolLinkMode autotest on macOS
Fix symbolLinkMode autotest on macOS

An expected failure was inadvertantly "fixed" by a5f2a7820f. Disable the
run environment setup for this autotest.

Change-Id: I34032ae0bdf51e6bc80ac1902df1ab8e31ed1464
Reviewed-by: Joerg Bornemann <47777b9406dbddd02a3fdca8341789a013805a11@qt.io>

qt-labs/qbs,qtproject/qt-labs-qbs,qtproject/qt-labs-qbs,qt-labs/qbs,qtproject/qt-labs-qbs,qt-labs/qbs,qtproject/qt-labs-qbs,qt-labs/qbs,qtproject/qt-labs-qbs,qt-labs/qbs,qtproject/qt-labs-qbs,qt-labs/qbs,qt-labs/qbs,qtproject/qt-labs-qbs