Fix compat change CTS test flakiness

Cleanup overrides in the PlatformCompatCommandNotInstalledTest test.

Test: atest PlatformCompatCommandNotInstalledTest
Test: adb shell dumpsys platform_compat | grep override # is empty
Bug: 169235095
Change-Id: Ibd9f2801e8b4c571dca49f0682a8bc3b17ffd545
1 file changed