i9500: remove sensorhubs blobs

Change-Id: Id6b3259f9de11bf129a78b8e944b0108b54688c5
i9500: use prebuilt hwcomposer for now

Change-Id: I89bdbdd17e984fec195b16877189983310ee51b7
Revert "i9500: use prebuilt hwcomposer for now"

This reverts commit 89aa52f8211a07a22f48e160f53cbb356051c24a.