remove unused parameters and return values

Change-Id: Ibc2cf3d0d1c96abe7de7c0b5bc4262272e52d365
Reviewed-on: http://fulliautomatix.ics.uci.edu:8443/132
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Ian Maxon <imaxon@uci.edu>
2 files changed