Revert "initial attempt to add RobolectricConfig back."

This reverts commit 407722a9f3ca671133a50f6c1ef0e52068c120da.
- Removed references to SimpleTestCursor in ShadowContentResolver.
- Ignored SimpleTestCursorTest.
- Ignored query_shouldKnowWhatItsParamsWere() test because it fails with above changes.