Revert "Change LayoutPreference resource path in robo test"

This reverts commit ff8fca7d9eac8edea506d5b7c69f101b329176a3.

Reason for revert: broke build when combined with ag/5781147
Bug: 120706174

Change-Id: Id543bc3cb0b4979144e92c400e57988009f4c407
1 file changed