addressing some code review comments

Signed-off-by: Brian Fletcher <brian@roadie.io>

plugins/auth-node/package.json

@@ -26,8 +26,6 @@
     "@backstage/backend-common": "^0.15.0-next.0",
     "@backstage/config": "^1.0.1",
     "@backstage/errors": "^1.1.0",
-    "@types/express": "^4.17.6",
-    "express": "^4.18.1",
     "jose": "^4.6.0",
     "node-fetch": "^2.6.7",
     "winston": "^3.2.1"