Removing fedora-37-armhfp chroot

[Jakub Kadlčík]

Hello,
today we were made aware that it is possible to build for
fedora-37-armhfp in Copr and that such builds immediately fail.

That is because the armhfp architecture was discontinued since Fedora
37, meaning that Fedora 36 is the last version that supports it.
For more information, please read
https://fedoraproject.org/wiki/Changes/RetireARMv7

The fedora-37-armhfp chroot was added into Copr accidentally, and I am
now disabling it.

Jakub