Allow security context in GCE clusters

cluster/gce/config-default.sh

@@ -113,7 +113,7 @@ if [[ "${ENABLE_DAEMONSETS}" == "true" ]]; then
 fi
 
 # Admission Controllers to invoke prior to persisting objects in cluster
-ADMISSION_CONTROL=NamespaceLifecycle,LimitRanger,SecurityContextDeny,ServiceAccount,ResourceQuota
+ADMISSION_CONTROL=NamespaceLifecycle,LimitRanger,ServiceAccount,ResourceQuota
 
 # Optional: if set to true kube-up will automatically check for existing resources and clean them up.
 KUBE_UP_AUTOMATIC_CLEANUP=${KUBE_UP_AUTOMATIC_CLEANUP:-false}