Remove API 20 Test

We no longer support this exception for < 21 targeting apps

Test: build
Bug: 340711546
Flag: TEST_ONLY

Change-Id: I4b3ec9417dc17b198c1a1ab4b82dd1162a7c38ee
Merged-In: I4b3ec9417dc17b198c1a1ab4b82dd1162a7c38ee
5 files changed