sw: unused includes in hffrm

Change-Id: I5e993b6ad54f7d33b1dfb1ff455281975add2981
sw: unused includes in layact

Change-Id: I24f8e817e1f615e8cdab6dde7ede3bce1ab226d2
sw: unused includes in laycache

Change-Id: Ibd168ee6a5da734bc3b20bbab698953eb13f0e73
sw: unused includes in layouter

Change-Id: Iac0799219df9eb07d1de9886153cbf8390cbacb0