Remove workaround for persistent keyring krb5.conf.
Remove workaround for persistent keyring krb5.conf.

Remove workaround because latest RHEL 7.8 release has this patched.

Signed-off-by: Tibor Dudlák <afcec191e91346bde3f2b4dfbdbe0baa4b3176f5@redhat.com>

freeipa/freeipa-container,adelton/docker-freeipa