Revert "Consolidate clock color logic"

Revert submission 31920138-mpietal_clock_color

Reason for revert: frameworks/base/packages/SystemUI/multivalentTests/src/com/android/systemui/shared/clocks/DefaultClockProviderTest.kt:115:40: error: type mismatch: inferred type is () -> Unit but ClockEventListener? was expected
clock.initialize(true, 0f, 0f, {})

Reverted changes: /q/submissionid:31920138-mpietal_clock_color

Change-Id: I86709f1f4c7042a64c1abb1da16dd0980aa7509c