Revert "Add eLayerIsDisplayDecoration flag" Revert submission 16511727-wm_DISPLAY_DECORATION Reason for revert: b/211835607 Reverted Changes: I1da3199ba:Allow changing composition from DISPLAY_DECORATION... I1fae74b36:Update documentation for DISPLAY_DECORATION I1da03a88f:Add eLayerIsDisplayDecoration flag I7f22dfd03:Add/plumb SurfaceControl.DISPLAY_DECORATION Change-Id: I449e1bb74e0d197661033bf114a25ae6ec04e418 (cherry picked from commit 27609c37d83abfb52b7f448e9cbcce627af93416) Merged-In:I449e1bb74e0d197661033bf114a25ae6ec04e418