Revert "Add developer option for freeform window support (2/2)"

This reverts commit 292b9fd2daf9d3222430a1a017623d2ce1a17471.

Will add back later and limit to non-user builds.

Bug: 27295415
Bug: 25276672
Bug: 24815256
Change-Id: Ide230449615318a0d3f4bc607724e7eaaf1d43c4
2 files changed