Merge pull request #58860 from Pingan2017/seccomp

Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

clean up unused const

**What this PR does / why we need it**:

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

pkg/kubelet/dockershim/docker_service.go

@@ -56,8 +56,6 @@ const (
 
 	dockerNetNSFmt = "/proc/%v/ns/net"
 
-	defaultSeccompProfile = "unconfined"
-
 	// Internal docker labels used to identify whether a container is a sandbox
 	// or a regular container.
 	// TODO: This is not backward compatible with older containers. We will