ci: drop FAHC repo in favour of f31-coreos-continuous

FAHC is super out of date now. The way to have access to newer packages
is via the continuous tag, which is still manual for now, but at least
targets the right Fedora release.

ci/installdeps.sh

@@ -10,19 +10,9 @@ if [ -n "${SKIP_INSTALLDEPS:-}" ]; then
     exit 0
 fi
 
-# Use the latest ostree by default (XXX: currently pulling in f29 ostree, need
-# to bump rdgo to f30 or wait for packit)
-id=$(. /etc/os-release && echo $ID)
+# Add the continuous tag for latest build tools and mark as required.
 version_id=$(. /etc/os-release && echo $VERSION_ID)
-if [ "$id" == fedora ] && [ "$version_id" -ge 29 ]; then
-    echo -e '[fahc]\nmetadata_expire=1m\nbaseurl=https://ci.centos.org/artifacts/sig-atomic/fahc/rdgo/build/\ngpgcheck=0\n' > /etc/yum.repos.d/fahc.repo
-    # Until we fix https://github.com/rpm-software-management/libdnf/pull/149
-    excludes='exclude=ostree ostree-libs ostree-grub2 rpm-ostree'
-    for repo in /etc/yum.repos.d/fedora*.repo; do
-        cat ${repo} | (while IFS= read -r line; do if echo "$line" | grep -qE -e '^enabled=1'; then echo "${excludes}"; fi; echo "$line"; done) > ${repo}.new
-        mv ${repo}.new ${repo}
-    done
-fi
+echo -e "[f${version_id}-coreos-continuous]\nenabled=1\nmetadata_expire=1m\nbaseurl=https://kojipkgs.fedoraproject.org/repos-dist/f${version_id}-coreos-continuous/latest/\$basearch/\ngpgcheck=0\nskip_if_unavailable=False\n" > /etc/yum.repos.d/coreos.repo
 
 pkg_upgrade
 # install base builddeps like @buildsys-build