Remove Settings robolectric tests which also have a junit test.

Before the JUnit test suite was a blocking presubmit, new junit tests
would be written without removing the old robolectric test. Now that the
JUnit tests are productionized, we can remove the robolectric tests if
there is also an associated Junit one.

Utility script which was used to generate this list can be found at
https://paste.googleplex.com/5113068112576512.

Bug: 175389659
Test: atest SettingsUnitTests
Change-Id: Iabf4dbcccd573e9e1482b3a3e61c0f169f81bcb4