Revert "Revert "Use renderengine::drawLayers api everywhere.""

This reverts commit 79108df8.

Reason for revert: merged in forward fix - GL_BLEND is now explictly
disabled before initially clearing the buffer.

Bug: 118461793
Test: b/123878751 cannot be reproduced.
Change-Id: Ia49163b40016e746500d9954e1863d0706bc65e1