chore: remove unused files

Author: iiroj

.pre-commit-hooks.yaml

@@ -24,7 +24,6 @@
     "lib"
   ],
   "scripts": {
-    "cz": "git-cz",
     "lint": "eslint .",
     "test": "jest --coverage",
     "test:watch": "jest --watch"
@@ -62,11 +61,6 @@
     "jest-snapshot-serializer-ansi": "^1.0.0",
     "prettier": "^2.4.1"
   },
-  "config": {
-    "commitizen": {
-      "path": "./node_modules/cz-conventional-changelog"
-    }
-  },
   "keywords": [
     "lint",
     "git",