Cleaned Up DevTools Knip Report

Signed-off-by: Andre Wanlin <awanlin@spotify.com>

plugins/devtools-backend/package.json

@@ -55,7 +55,6 @@
   "devDependencies": {
     "@backstage/backend-test-utils": "workspace:^",
     "@backstage/cli": "workspace:^",
-    "@types/minimist": "^1.2.0",
     "@types/ping": "^0.4.1",
     "@types/supertest": "^2.0.8",
     "@types/yarnpkg__lockfile": "^1.1.4",