Themes: Revert "Send broadcast when package is 'about' to be removed"

This reverts commit 238e80a5c7edcb922ce15feebec74ea2475c31cb.
This was a band-aid that is being fixed in a future commit.

Change-Id: I89a928e2fd9cff2b1992a6e85eb5c96c5b8b9b0e
Themes: Partial change: Use ArrayListExtra for broadcasting theme changes [1/2]

Change-Id: I897cfbbe293b73f9e8f069f4b4cefa7c3ffb79ed
Themes: Style, boot animation, and wallpaper previews

Change-Id: I2b367bf5336c03f2a4972a05b68922065cd4a701