remove duplicate contents and redirect

site/content/zh/contributing/mac/_index.md

@@ -7,40 +7,6 @@ description: >
     How to develop on MacOS
 ---
 
-First install the tools to build and run tests
+<meta http-equiv="refresh" content="0; url=https://kubectl.docs.kubernetes.io/zh/contributing/windows/" />
 
-### Install go 1.13
-
-[Instructions](https://golang.org/doc/install)
-
-Add `go` to your PATH
-
-### Install kubeval
-
-[Instructions](https://github.com/instrumenta/kubeval)
-
-```sh
-go get github.com/instrumenta/kubeval
-```
-
-Add `kubeval` to your PATH
-
-### Install gnu tools
-
-[Instructions](https://www.topbug.net/blog/2013/04/14/install-and-use-gnu-command-line-tools-in-mac-os-x/)
-
-```sh
-brew install coreutils wget gnu-sed tree
-```
-
-Add the new tools to your PATH
-
-## Make everything
-
-Verify your install by running `make`:
-
-```sh
-make
-```
-
-Be default, this runs all tests needed to qualify a pull request.
+Moved to https://github.com/kubernetes-sigs/cli-experimental