Revert^2 "Fix cts testMinimalSizeDocked fail when device supports multiwindow feature."

This reverts commit 9be10dd2.

Reason for revert: 
The original CL doesn't seems like the root cause of b/382211612.
Bug: b/367878178 
Test:
run cts -m CtsWindowManagerDeviceTestCases -t android.server.wm.ManifestLayoutTests#testMinimalSizeDocked

Change-Id: Iffcc522d7c63d5df917ef536e6a3ab4aa6ccac3d