Remove useless snapshot and reset functions
Remove useless snapshot and reset functions

ChakriCherukuri/bqplot,ssunkara1/bqplot,ssunkara1/bqplot,bloomberg/bqplot,SylvainCorlay/bqplot,dmadeka/bqplot,rmenegaux/bqplot,ChakriCherukuri/bqplot,ChakriCherukuri/bqplot,bloomberg/bqplot,SylvainCorlay/bqplot,SylvainCorlay/bqplot,bloomberg/bqplot,dmadeka/bqplot,rmenegaux/bqplot