usb: storage: datafab: remove redundant assignment of variable result

The variable result is being assigned with a value that is
never read, the assignment is redundant and can be removed.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Addresses-Coverity: ("Unused value")
Link: https://lore.kernel.org/r/20210420113818.378478-1-colin.king@canonical.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>