🧶chore: remove useless web files

web/README.md

-# React Template
-
-## Basic Usages
-
-```shell
-# Runs the app in the development mode
-npm start
-
-# Builds the app for production to the `build` folder
-npm run build
-```
-
-If you want to change the default server, please set `REACT_APP_SERVER` environment variables before build,
-for example: `REACT_APP_SERVER=http://your.domain.com`.
-
-Before you start editing, make sure your `Actions on Save` options have `Optimize imports` & `Run Prettier` enabled.
-
-## Reference
-
-1. https://github.com/OIerDb-ng/OIerDb
-2. https://github.com/cornflourblue/react-hooks-redux-registration-login-example