Merge pull request #106661 from liggitt/automated-cherry-pick-of-#106…

…660-upstream-release-1.23

Automated cherry pick of #106660: Revert sigs.k8s.io/structured-merge-diff/v4 to v4.1.2

Kubernetes-commit: 724289524084f6edbbe53e31d2c6e636343fdebb

go.mod

@@ -24,5 +24,3 @@ require (
 	k8s.io/kube-openapi v0.0.0-20211115234752-e816edb12b65
 	sigs.k8s.io/structured-merge-diff/v4 v4.1.2 // indirect
 )
-
-replace k8s.io/code-generator => ../code-generator