Fixing wallpaper preview rendered not being cleaned properly

> Using a single RunnableList for all the cleanup
> Performing cleanup when renderer surface is released

Bug: 362292374
Test: Verified manually using heapdump
Flag: EXEMPT bugfix
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:be796be5e66b70bde118996dd5650d7fc9901ca5)
Merged-In: Idc1ee20dee2a2944d8e1c1d06b2662818d2b7001
Change-Id: Idc1ee20dee2a2944d8e1c1d06b2662818d2b7001