cleanup private header file
cleanup private header file

gbeauchesne/libva-intel-hybrid-driver,01org/intel-hybrid-driver,gbeauchesne/libva-intel-hybrid-driver,01org/intel-hybrid-driver,BtbN/intel-hybrid-driver,BtbN/intel-hybrid-driver,seanvk/intel-hybrid-driver,gbeauchesne/libva-intel-hybrid-driver,01org/intel-hybrid-driver,BtbN/intel-hybrid-driver,gbeauchesne/libva-intel-hybrid-driver,BtbN/intel-hybrid-driver,seanvk/intel-hybrid-driver,seanvk/intel-hybrid-driver,01org/intel-hybrid-driver,seanvk/intel-hybrid-driver,BtbN/intel-hybrid-driver,gbeauchesne/libva-intel-hybrid-driver,seanvk/intel-hybrid-driver,01org/intel-hybrid-driver