Created by: ianschmitz
Removes plugins unnecessary after the 7.8.0 release of babel: https://babeljs.io/blog/2020/01/11/7.8.0.
@babel/plugin-transform-destructuring
is handled by preset-env, but i left it in due to our hooks optimizations: https://github.com/ianschmitz/create-react-app/blob/fc69d915430408c6ecec51d91a1a62fcb494df90/packages/babel-preset-react-app/create.js#L124
Also updates some other dependencies missed in #8324.