fix: remove patch-package and postinstall script

Author: el-besto

package.json

@@ -48,7 +48,6 @@
     "jest": "^23.6.0",
     "jest-environment-node": "22.4.1",
     "nyc": "11.2.1",
-    "patch-package": "^8.0.0",
     "prop-types": "15.6.0",
     "react": "16.0.0",
     "react-dom": "16.0.1",
@@ -67,12 +66,11 @@
     "build:watch": "babel -w src --out-dir dist",
     "lint": "eslint .",
     "lint:watch": "esw -w lib/**",
-    "prepare": "npm run build",
-    "postinstall": "patch-package"
+    "prepare": "npm run build"
   },
   "commitlint": {
     "extends": [
       "@commitlint/config-conventional"
     ]
   }
-}
+}