For further simplification, merge decrementing reference count of
nvme_bdev_ctrlr into nvme_bdev_ctrlr_destruct().
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I604039c3f38a60b316ae465d4649e9eb11bfb6cc
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5573
Community-CI: Broadcom CI
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>