Reverted one line in marks.py, it was meant for a future commit
Reverted one line in marks.py, it was meant for a future commit

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