Revert "Modify SurfaceView to use SurfaceFlinger child surfaces."

This reverts commit 693f3432.

P0: When playing encrypted content the Fugu displays a blank screen.

Test: with topic "surfaceview-without-wm" reverted, encrypted playback
works on ToT oc-release. See repro steps in 35917840#12.

bug:35917840

Change-Id: I37fa1e427daff3a1c18ed1c92d035421d891f67c