Remove excess code.(related issue #12871 )

[littlesparklet]

Please do not create a Pull Request without creating an issue first.

What is the purpose of the change

To remove excess code in zh-CN.js and en-US.js.

[github-actions]

Thanks for your this PR. 🙏
Please check again for your PR changes whether contains any usage/api/configuration change such as Add new API , Add new configuration, Change default value of configuration.
If so, please add or update documents(markdown type) in docs/next/ for repository nacos-group/nacos-group.github.io

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感谢您提交的PR。 🙏
请再次查看您的PR内容，确认是否包含任何使用方式/API/配置参数的变更，如：新增API、新增配置参数、修改默认配置等操作。
如果是，请确保在提交之前，在仓库nacos-group/nacos-group.github.io中的docs/next/目录下添加或更新文档（markdown格式）。

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 72.26%. Comparing base (a24e7ac) to head (ec4318b).
Report is 2 commits behind head on develop.

Additional details and impacted files

@@              Coverage Diff              @@
##             develop   #12874      +/-   ##
=============================================
+ Coverage      72.16%   72.26%   +0.09%     
- Complexity      9793     9825      +32     
=============================================
  Files           1283     1287       +4     
  Lines          41387    41445      +58     
  Branches        4374     4373       -1     
=============================================
+ Hits           29868    29950      +82     
+ Misses          9413     9391      -22     
+ Partials        2106     2104       -2     

see 14 files with indirect coverage changes

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---- 🚨 Try these New Features:

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[wuyfee]

$\color{red}{FAILURE}$
DETAILS
✅ - docker: success
✅ - deploy (standalone & cluster & standalone_auth): success
✅ - e2e-java-test (standalone & cluster & standalone_auth): success
✅ - e2e-go-test (standalone & cluster): success
❌ - e2e-cpp-test (standalone & cluster): failure
✅ - e2e-csharp-test (standalone & cluster): success
✅ - e2e-nodejs-test (standalone & cluster): success
✅ - e2e-python-test (standalone & cluster): success
✅ - clean (standalone & cluster & standalone_auth): success