bwmf: Remove unused fields in bwmfTask struct
bwmf: Remove unused fields in bwmfTask struct

plutoshe/taskgraph,kod3r/taskgraph,5kg/taskgraph,taskgraph/taskgraph,taskgraph/taskgraph,plutoshe/taskgraph,kod3r/taskgraph,fengjingchao/taskgraph,dzch/taskgraph,5kg/taskgraph,dzch/taskgraph,fengjingchao/taskgraph