Removes un-used css from common.less
Removes un-used css from common.less

quantiply-fork/coopr,cdapio/coopr,cdapio/coopr,caskdata/coopr,cdapio/coopr,caskdata/coopr,quantiply-fork/coopr,quantiply-fork/coopr,cdapio/coopr,caskdata/coopr,quantiply-fork/coopr,caskdata/coopr,cdapio/coopr,caskdata/coopr