+ Benchmark: remove unnecessary glib header from benchmark.cpp
+ Benchmark: remove unnecessary glib header from benchmark.cpp

jnetterf/calf,zamaudio/calf-LR4,zamaudio/calf-LR4,jnetterf/calf,zamaudio/calf-LR4,zamaudio/calf-LR4,adiknoth/calf,adiknoth/calf,adiknoth/calf,jnetterf/calf,jnetterf/calf,zamaudio/calf-LR4,adiknoth/calf,adiknoth/calf,jnetterf/calf