remove unneeded deps

Author: felixheck

package-lock.json

@@ -54,7 +54,6 @@
     "joi": "^13.0.0",
     "jsonwebtoken": "^8.1.0",
     "jwk-to-pem": "^1.2.6",
-    "keycloak-auth-utils": "^3.3.0",
     "keycloak-connect": "^3.4.1",
     "lodash": "^4.17.4",
     "pupa": "^1.0.0"