habanalabs/gaudi: remove redundant assignment to variable err

The variable err is being assigned a value that is never read, the
assignment is redundant and can be removed. Also remove some empty
lines.

Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Addresses-Coverity: ("Unused value")
Link: https://lore.kernel.org/r/20210603131210.84763-1-colin.king@canonical.com


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