Clean zh/docs directory for dangling YAML files (#17341)

There are many YAML manifests sneaking into the `zh/docs/` directory.
These files should go to the `zh/examples` directory instead. Having
these "garbage" files (not referenced anywhere) is creating confusion
for the release meister when merging branches. For example, some YAML
files found in the 'master' branch are no longer there in the
release-1.16 branch. It is tedious, if possible at all, to solve all
this kind of conflicts during a rebase.

The PR cleanses the zh/docs directory for all dangling YAML files.

content/zh/docs/tasks/run-application/run-stateless-application-deployment.md

@@ -32,12 +32,12 @@ content_template: templates/tutorial
 
 你可以通过创建一个Kubernetes Deployment对象来运行一个应用, 可以在一个YAML文件中描述Deployment. 例如, 下面这个YAML文件描述了一个运行nginx:1.7.9 Docker镜像的Deployment:
 
-{{< code file="deployment.yaml" >}}
+{{< codenew file="application/deployment.yaml" >}}
 
 
 1. 通过YAML文件创建一个Deployment:
 
-       kubectl create -f https://k8s.io/docs/tasks/run-application/deployment.yaml
+        kubectl apply -f https://k8s.io/examples/application/deployment.yaml
 
 1. 展示Deployment相关信息:
 
@@ -90,29 +90,29 @@ content_template: templates/tutorial
 
 你可以通过更新一个新的YAML文件来更新deployment. 下面的YAML文件指定该deployment镜像更新为nginx 1.8.
 
-{{< code file="deployment-update.yaml" >}}
+{{< codenew file="application/deployment-update.yaml" >}}
 
 1. 应用新的YAML:
 
-       kubectl apply -f https://k8s.io/docs/tutorials/stateless-application/deployment-update.yaml
+         kubectl apply -f https://k8s.io/examples/application/deployment-update.yaml
 
 1. 查看该deployment创建的pods以新的名称同时删除旧的pods:
 
-       kubectl get pods -l app=nginx
+         kubectl get pods -l app=nginx
 
 ## 通过增加副本数来弹缩应用
 
 你可以通过应用新的YAML文件来增加Deployment中pods的数量. 该YAML文件将`replicas`设置为4, 指定该Deployment应有4个pods:
 
-{{< code file="deployment-scale.yaml" >}}
+{{< codenew file="application/deployment-scale.yaml" >}}
 
 1. 应用新的YAML文件:
 
-       kubectl apply -f https://k8s.io/docs/tutorials/stateless-application/deployment-scale.yaml
+        kubectl apply -f https://k8s.io/examples/application/deployment-scale.yaml
 
 1. 验证Deployment有4个pods:
 
-       kubectl get pods -l app=nginx
+        kubectl get pods -l app=nginx
 
     输出的结果类似于: