install.sh should not abort if openshift olm is not installed

fixes: #2210

Author: jmazzitelli

Diff for: scripts/install.sh

@@ -14,8 +14,7 @@ if [[ ${#@} -lt 1 || ${#@} -gt 2 ]]; then
     exit 1
 fi
 
-kubectl get deployment olm-operator -n openshift-operator-lifecycle-manager -o=jsonpath='{.spec}' > /dev/null 2>&1
-if [[ $? -eq 0 ]]; then
+if kubectl get deployment olm-operator -n openshift-operator-lifecycle-manager -o=jsonpath='{.spec}' > /dev/null 2>&1; then
     echo "OLM is already installed in a different configuration. This is common if you are not running a vanilla Kubernetes cluster. Exiting..."
     exit 1
 fi