refactor: remove patchPlugins

[sapphi-red]

Description

I simply resolved the TODO and ran the tests and it passed.
But after doing that I noticed that there's still some config references in our internal plugins, should we remove all of these before doing this PR?

vite/packages/vite/src/node/plugins/asset.ts

Line 153 in 3778c7a

if (!config.assetsInclude(cleanUrl(id)) && !urlRE.test(id)) {

[patak-dev]

Yes, we aren't testing with sharedConfig right now. We could have an option to force it for testing locally maybe. For reference, this was added here:

• test(v6): reproduce custom environment preload injection #16541