Remove testPathPatterns Jest config details from v30 upgrade guide

[lencioni]

Summary

It seems that this is only a CLI option, and not supported in the Jest config file, so we shouldn't include those details in this upgrade guide.

More details in #15645

Test plan

I cloned this repo: https://github.com/lencioni/jest-test-path-patterns

Then I installed Jest v29 and ran yarn jest --config singular.config.js. It logged this validation warning:

● Validation Warning:

  Unknown option "testPathPattern" with value /__tests__\/.*\.test\.js$/ was found.
  This is probably a typing mistake. Fixing it will remove this message.

  Configuration Documentation:
  https://jestjs.io/docs/configuration

● Validation Warning:

  Unknown option "testPathPattern" with value /__tests__\/.*\.test\.js$/ was found.
  This is probably a typing mistake. Fixing it will remove this message.

  Configuration Documentation:
  https://jestjs.io/docs/configuration

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[cpojer]

Oh, that's confusing. Thanks for investigating and sending a PR!

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