target: Merge transport_cmd_finish_abort_tmr into transport_cmd_finish_abort

This patch merges transport_cmd_finish_abort_tmr() logic into a single
transport_cmd_finish_abort() function by adding a cmd->se_tmr_req check
around transport_lun_remove_cmd(), and updates the single caller within
core_tmr_drain_tmr_list().

Reported-by: Christoph Hellwig <hch@lst.de>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c
index efc5ec7d..b8dc10f 100644
--- a/drivers/target/target_core_tmr.c
+++ b/drivers/target/target_core_tmr.c
@@ -161,7 +161,7 @@
 			(preempt_and_abort_list) ? "Preempt" : "", tmr,
 			tmr->function, tmr->response, cmd->t_state);
 
-		transport_cmd_finish_abort_tmr(cmd);
+		transport_cmd_finish_abort(cmd, 1);
 	}
 }