Revert "qemu: Match firmware with fully resolved and canonicalized paths"

Revert "qemu: Match firmware with fully resolved and canonicalized paths"

The canonicalization of the paths is not mocked properly and thus the
tests depend on the host system. While the tests do pass on our CI they
break on real deployments at least on Fedora 42.

Since we're in code freeze for the upcoming release, revert the patch
instead of attempts to fix it.

This reverts commit 4efea21ae8709c6741a1800bd26ae6b49c8a77f5.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>