nvme-pci: clean up nvme_remove_dead_ctrl a bit

Remove the status parameter o nvme_remove_dead_ctrl(), which is only
used for printing it.

We move the print message to the same function where actual error is
occurring.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>