Remove extra mocks files

[jkmassel]

To test:
I think all of our UI tests are disabled right now anyway, so this may not matter. But these files shouldn't affect them. We could try re-enabling a test we know to work, or if this breaks something, we could fix it later?

Either way, these seem incorrectly located.

WDYT @rachelmcr?

PR submission checklist:

• I have considered adding unit tests where possible.
• I have considered adding accessibility improvements for my changes.
• I have considered if this change warrants user-facing release notes and have added them to RELEASE-NOTES.txt if necessary.

[peril-wordpress-mobile]

You can test the changes on this Pull Request by downloading the APK here.

[rachelmcr]

Oh, interesting. These are definitely in the wrong location.

However, both of these mocks relate to tests that we've had flaky results from (tests using magic links and editor tests). Before we remove these mocks entirely, it might be worth moving them to the correct location and seeing if they resolve that flakiness.

[rachelmcr]

I've changed my mind since my earlier comment. Since these mocks files aren't being used and are adding clutter, let's remove them now. (The login issue I mentioned before is resolved and the editor issue is tracked in #11897 in case we need to refer back to these removed mocks.)