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:a0349a6e5f10226710e57982fdb7f7d6fd7046bb) Merged-In: Ife76258ca2c1e06c90112efb277c27a1a02fc94f Change-Id: Ife76258ca2c1e06c90112efb277c27a1a02fc94f