Qt Creator will soon start to rely on go for tools and upx for binary compression.
Right now we can't install upx on macOS which we can live with.
Leaving the script in for later re-enabling once brew has been fixed.
Pick-to: 6.7 6.8
Change-Id: I4fdc67e469153e8a0530efd58ff251629dcabdfa
Reviewed-by: Eike Ziller <eike.ziller@qt.io>
