Revert "Add flag to guard WM Extensions for all devices"

Revert submission 25408015-wm_extensions_for_all

Reason for revert: b/329534949

Reverted changes: /q/submissionid:25408015-wm_extensions_for_all

Change-Id: Ifd4586d5304ca4e456c2ca9128f14ad7a285aa9c
8 files changed