chore(contribution): change the contribution.md

Author: Littleor

.github/contributing.md

@@ -53,7 +53,6 @@ A high level overview of tools used:
 
 - [TypeScript](https://www.typescriptlang.org/) as the development language
 - [Babel](https://babeljs.io) for bundling
-- [Jest](https://jestjs.io/) for unit testing
 - [Prettier](https://prettier.io/) for code formatting
 
 ## Scripts

.github/pull_request_template.md

@@ -20,8 +20,6 @@ Closes [issue link]
 ### Check off the following:
 
 - [ ] I have read the [CONTRIBUTING.md](./contributing.md).
-- [ ] I have write the unit test.
-- [ ] I have pass the `yarn test`.
 - [ ] I have pass the `yarn lint`.