ci: Remove version selection script

ci/prow-entrypoint.sh

@@ -46,15 +46,6 @@ cosa_init() {
 
     # Setup source tree
     cosa init --transient "${tmp_src}/os"
-    # Select RHEL os CentOS Stream version
-    # This must be defined for each test job entry point
-    if [[ -z ${RHELVER+x} ]]; then
-        echo "No RHEL or CentOS Stream version selected to build RHCOS/SCOS"
-        exit 1
-    fi
-    pushd src/config
-    ./select_version.sh "${RHELVER}"
-    popd
 }
 
 # Do a cosa build & cosa build-extensions only.
@@ -72,12 +63,8 @@ cosa_build() {
     cosa buildfetch --url="${prev_build_url}"
 
     # Fetch the repos corresponding to the release we are building
-    # Temporarily double checked until we have uniformity for all RHEL and
-    # CentOS versions
-    if [[ "${RHELVER}" == "rhel-8.6" ]]; then
-        rhelver=$(rpm-ostree compose tree --print-only src/config/manifest.yaml | jq -r '.["automatic-version-prefix"]' | cut -f2 -d.)
-        curl -L "http://base-${ocpver_mut}-rhel${rhelver}.ocp.svc.cluster.local" -o "src/config/ocp.repo"
-    fi
+    rhelver=$(rpm-ostree compose tree --print-only src/config/manifest.yaml | jq -r '.["automatic-version-prefix"]' | cut -f2 -d.)
+    curl -L "http://base-${ocpver_mut}-rhel${rhelver}.ocp.svc.cluster.local" -o "src/config/ocp.repo"
 
     # Fetch packages
     cosa fetch
@@ -171,14 +158,12 @@ main () {
             cosa_build
             ;;
         "rhcos-cosa-prow-pr-ci" | "rhcos-86-build-test-qemu")
-            RHELVER="rhel-8.6"
             setup_user
             cosa_init
             cosa_build
             kola_test_qemu
             ;;
         "rhcos-86-build-test-metal")
-            RHELVER="rhel-8.6"
             setup_user
             cosa_init
             cosa_build