Remove persist.bootanim.color property definitions

These now belong to the platform policy.

Bug: 321088135
Test: build
Ignore-AOSP-First: sync policy internally first.
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:ac4e87de8cbc087dc51561120bee460f1cec5f94)
Merged-In: Ie4b1351c3b5c299ea86df588fa019c872be3f63c
Change-Id: Ie4b1351c3b5c299ea86df588fa019c872be3f63c
1 file changed