remove unused functions

Change-Id: I5e176c705cc373333831e4b833386ed707418d2e
set transformation matrix as property with fixed size

Change-Id: I3853ea0f6f3b82dc6ea7b402dec58d528b639684
remove more unused code

Change-Id: I57c5bc1fd436df4e917d460a31d671e361fd47b3
remove more unused code

Change-Id: I36ec2e2960072120a064805f171e20703f0508c0
remove unused shader

Change-Id: Ib30ff20e099f4b3403a3ca7689f7d8d75d888763