Remove debugging code
Remove debugging code

Now input prompt is what it should be, instead of the cell components key.

Carreau/phosphor-notebook-old-orig,KesterTong/phoshpor-notebook,KesterTong/phoshpor-notebook,Carreau/phosphor-notebook-old-orig,KesterTong/phoshpor-notebook,Carreau/phosphor-notebook-old-orig