clean up duplicated / no-longer-needed bower dependencies
clean up duplicated / no-longer-needed bower dependencies

TryGhost/Ghost-Admin,JohnONolan/Ghost-Admin,JohnONolan/Ghost-Admin,acburdine/Ghost-Admin,acburdine/Ghost-Admin,kevinansfield/Ghost-Admin,TryGhost/Ghost-Admin,kevinansfield/Ghost-Admin