877f2a6d35
**Root cause** The ReduceBrightColorsIntensityPreferenceControllerTest would modify the settings during test. However, since this is a unit test, it shouldn't trigger modifying the brightness on the attached test device. Otherwise, the test would be unstable depends on how stable the device is, which should be tested by the integration test. Bug: 397762527 Test: abtd Flag: EXEMPT test only Change-Id: I0c0d7327d4356482295121c11c3a1e5ed814ffec