chore: @putout/operator-parens: rm @putout/eslint-flat

Author: coderaiser

packages/operator-parens/package.json

@@ -30,7 +30,6 @@
     "parens"
   ],
   "devDependencies": {
-    "@putout/eslint-flat": "^3.0.0",
     "c8": "^10.0.0",
     "eslint": "^9.0.0",
     "eslint-plugin-n": "^17.0.0",