mlx4: remove unused fields
This also can address following UBSAN warnings:
[ 36.640343] ================================================================================
[ 36.648772] UBSAN: Undefined behaviour in drivers/net/ethernet/mellanox/mlx4/fw.c:857:26
[ 36.656853] shift exponent 64 is too large for 32-bit type 'int'
[ 36.663348] ================================================================================
[ 36.671783] ================================================================================
[ 36.680213] UBSAN: Undefined behaviour in drivers/net/ethernet/mellanox/mlx4/fw.c:861:27
[ 36.688297] shift exponent 35 is too large for 32-bit type 'int'
[ 36.694702] ================================================================================
Tested:
reboot with UBSAN, no warning.
Signed-off-by: David Decotigny <decot@googlers.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>