Never gpg sign git commits in macros

[Jan200101]

gpg may prompt for a password which will hold up any package from building

[dmnks]

We have this whack-a-mole situation in the git macros where we try to undo any problematic git settings a user may have on the system globally. This is not new by any means, and is pretty much what #3472 is about, too.

Instead, it would perhaps be better to start with a clean, well-defined git config for the purposes of %autopatch -S git, and only let the global config come into effect when using git manually from the build directory (when making additional patches or resolving conflicts).

That said, in the interim, this fix may suffice, of course. @pmatilai, @ffesti, any thoughts?

[pmatilai]

Seems harmless enough to me 😅

[dmnks]

Okay then, let's merge 👍

[dmnks]

@Jan200101 thanks!