remove unused methods
remove unused methods

RBigData/pbdADIOS,RBigData/pbdADIOS,RBigData/pbdADIOS,YupingLu/pbdADIOS,RBigData/pbdADIOS,YupingLu/pbdADIOS,YupingLu/pbdADIOS,go-ski/pbdADIOS,go-ski/pbdADIOS,go-ski/pbdADIOS