install-deps.sh: Remove CR repo

install-deps.sh: Remove CR repo

Remove the continuous release repos for CentOS and Virtuozzo 7 as they
should no longer be needed since http://tracker.ceph.com/issues/13997 is
no longer relevant and the newer versions of selinux packages pulled in
by the build system are causing problems for systems without CR repos
enabled.

Fixes: https://tracker.ceph.com/issues/37335
Signed-off-by: Alfredo Deza <adeza@redhat.com>
Signed-off-by: Brad Hubbard <bhubbard@redhat.com>