Remove a compat hack SurfaceView#setWindowType()

This CL logically reverts a compatibility hack I introduced [1] for
apps that had relied on @hide method SurfaceView#setWindowType(int).

 [1]: I5217f6417a73690ae8a978754218b7b089070fdd
      3b5011af

Fixes: 62054282
Test: Manually verified that Bug 36345857 is still not reproducible
Change-Id: Icee198c554de558cfa4ffe0b264064969839654e