fix nri removeMount does not work bug

nri needs to pass the del mount info to containerd,
so that containerd can handle the mount records that
need to be deleted correctly

Signed-off-by: jingtao.liang <jingtao.liang@easystack.cn>

Merge pull request containerd#79 from bobbypage/gh_nri_10085

Fix deadlock during NRI plugin registration

Merge pull request containerd#69 from champtar/multiple-close-windows

socketpair_windows: remove implementation for now

Merge pull request containerd#58 from thaJeztah/0.1_backport_remove_c…

…ontainerd_dependency

[release/0.1 backport] remove containerd as dependency

Merge pull request containerd#55 from thaJeztah/relocate_hooks_carry

Take pkg/hooks from github.com/containers/common (carry 46)

Merge pull request containerd#50 from samuelkarp/release-file

releases: update note about 0.4.0

Merge pull request containerd#16 from klihub/pr/proto/draft

Extend scope to enable common pluggable runtime extensions.