[Android] Cache images in device storage, devices have enough space now.

[purplecabbage]

Platforms affected

Android

Motivation and Context

We used to have to cache images on removable storage because devices did not have enough space, this is not an issue any longer, and it is better to let the system handle cache cleanup.

Description

Remove conditional, and just default to application storage

Testing

Checklist

• I've run the tests to see all new and existing tests pass
• I added automated test coverage as appropriate for this change
• Commit is prefixed with (platform) if this change only applies to one platform (e.g. (android))
• If this Pull Request resolves an issue, I linked to the issue in the text above (and used the correct keyword to close issues using keywords)
• I've updated the documentation if necessary

[jcesarmobile]

LGTM

[JacobIsrael18]

Google's camera app and MANY others are still crashing or freezing.