nvme: Remove dead codes in nvme_setup_io_queues()

Execution cannot reach this statement: "nr_io_queues = result;"

Reported-by: Coverity (CID: 166731)
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
1 file changed