Since the new parameter block is initialised to 0 by kzmalloc we don't
need to mask & clear unused operational mode bits, they are already
unset.

Drop the pointless code.
Signed-off-by: NKevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>