chore: remove useless code and deps

Author: vagusX

package.json

@@ -60,7 +60,6 @@
     "coveralls": "^3.0.6",
     "cross-env": "^7.0.2",
     "dumi": "^1.1.0",
-    "enzyme-to-json": "^3.4.0",
     "eslint": "^7.0.0",
     "father": "^2.13.4",
     "father-build": "^1.18.6",