Revert "Add reusable WindowDecorViewHosts with a pool-backed supplier"

This reverts commit 8c2eacb4e803a290ea3cc8e4a93f289e74e6fffc.

Reason for revert: b/366734118

Change-Id: Ie0cfd1b3d8befbe38b1420c38cbb7b80d1fa3a1b
11 files changed