Revert "fix(backend): add and configure ESLint for backend workspace (#150)" (#176)

This reverts commit d6afc79.

Author: ShantKhatri

apps/backend/eslint.config.js

@@ -10,7 +10,6 @@
     "test": "vitest run",
     "test:watch": "vitest",
     "lint": "eslint src/",
-    "lint:fix": "eslint src/ --fix",
     "db:migrate": "prisma migrate dev",
     "db:deploy": "prisma migrate deploy",
     "db:seed": "tsx prisma/seed.ts",
@@ -35,18 +34,10 @@
   "devDependencies": {
     "@types/node": "^22.0.0",
     "@types/qrcode": "^1.5.0",
-    "eslint": "^10.4.0",
-    "eslint-import-resolver-typescript": "^4.4.4",
-    "eslint-plugin-import-x": "^4.16.2",
-    "eslint-plugin-n": "^18.0.1",
-    "eslint-plugin-promise": "^7.3.0",
-    "eslint-plugin-security": "^4.0.0",
-    "eslint-plugin-unicorn": "^64.0.0",
     "pino-pretty": "^13.1.3",
     "prisma": "^6.0.0",
     "tsx": "^4.0.0",
     "typescript": "^5.4.0",
-    "typescript-eslint": "^8.59.3",
     "vitest": "^2.0.0"
   }
-}
+}