staging: unisys: include: Remove unused CHANNEL_OK defines.

The VISOR_VNIC_CHANNEL_OK_CLIENT and VISOR_HBA_CHANNEL_OK_CLIENT macros
were not being used. They can be removed.

Signed-off-by: Sameer Wadgaonkar <sameer.wadgaonkar@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Reviewed-by: David Binder <david.binder@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>