Call applyTransactionOnDraw when removing SV

When SV is detached, we will try to clean up the SurfaceControls.
However, we want the clean up to be synced with the main app window.
This is to ensure we don't remove SV's SC before the
app window draws in the hole punched area.

Instead of relying on postionLost to synchronize with the main app
window, we can use applyTransactionOnDraw to ensure the next frame will
merge the remove transaction. Therefore, we no longer have to call
remove in positionLost since it's already handled elsewhere.

Test: No flicker when removing SV
Bug: 199860472
Change-Id: I93a91c45c862949e53ee9fd1b4a3b10404fba6bb