Disable color extraction for media

Overlaying an album with wallpaper colors isn't optimal.
Using the album extracted color also isn't optimal, the color probably
won't meet accessibility guidelines and will have to be stretched
according to the current lock screen theme - which can be even worse.

Test: atest packages/SystemUI/tests/src/com/android/systemui/colorextraction/SysuiColorExtractorTests.java
Change-Id: I53d08713716bd76ee0975c2b4bba5b933201f999