I'm told that the website template can handle having no alpha tag.
Let's see if that's true.

Georg Koppen authored Dec 12, 2016 and Sebastian Hahn committed Dec 13, 2016

Due to Apple's codesigning requirement one can't simply compare hash
values to check whether a self-compiled bundle is matching the one we
ship. Yet our documentation seems to imply that. We should point this
problem out for now until we come up with a better solution.

This reverts commit 47f274b6.

Implements #20730, thanks dcf

fixes #20675, thanks cypherpunks