Clean up PC unit tests

- Move tests to same java-package as tested files so that package
  private methods can be used
- Convert all tests to Kotlin
- Move to undeprecated test-infra
- Clean out unnecessary dependencies out of built file

Bug: 153792195
Test: atest --include-subdirs --test-mapping packages/apps/PermissionController
Change-Id: I7cd6d6437f6492c44d5c7eaf14f57534c46c487c