contrib: simplify openshift/pr_check.sh

This script is used in the pipeline for the quay.io Clair instance. All
the real CI is done in GitHub Actions, so this is just to make that
process' happy.

Signed-off-by: Hank Donnay <hdonnay@redhat.com>

contrib/openshift/pr_check.sh

@@ -1,33 +1,4 @@
-#!/bin/bash
-
+#!/bin/sh
 set -e
-# set_root roots this script to the clair repository
-set_root() {
-    # the repo directory we are trying to root at
-    repo="clair"
-    # the file system root which indicates search for repo dir failed
-    fs_root="/"
-
-    # root yourself at dir containing this script
-    p=$(realpath "$0")
-    cd $(dirname $p)
-
-    # use basename to walk paths backwards searching for clair
-    basename=$(basename `pwd`)
-    while [[ $basename != $repo && $basename != $fs_root ]]; do
-        cd $(dirname `pwd`)
-        basename=$(basename `pwd`)
-    done
-
-    # if basename is not clair, we couldn't find the repository root
-    if [[ $basename != $repo ]]; then
-        return 1
-    fi
-    return 0
-}
-if [ ! set_root ]; then
-    echo "could not set root to clair repository"
-    exit 1
-fi
-
-make container-build
+# If anything specific for the quay.io Clair instance needs to happen, add that here.
+exit 0