iser-target: Unite error completion handler for RX and TX

As a pre-step to a single CQ, we unite the error completion
handlers to a single handler.

This patch does not change any functionality.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
1 file changed