移除社区项目镜像，仅导流给项目作者

docs/en_US/case/case1.md

@@ -5,7 +5,5 @@ Contributors:
 
 **Project**: [nezha_api_tgbot](https://github.com/spiritLHLS/nezha_api_tgbot) (Chinese)  
 
-**Mirror backup, non-real-time update**: [nezha_api_tgbot](https://github.com/nezhahq/nezha_api_tgbot) (Chinese)  
-
 The bot can request server status information from the Dashboard through the API, and then send the information to the user.  
 You can build this bot to easily view the current status of a given server without opening the Dashboard.  

docs/en_US/case/case3.md

@@ -4,8 +4,6 @@ Contributor:
 
 GitHub project: [nezha_telegram_bot](https://github.com/tech-fever/nezha_telegram_bot)（English is already supported）  
 
-Mirror backup, non-real-time update : [nezha_telegram_bot](https://github.com/nezhahq/nezha_telegram_bot)（English is already supported）  
-
 ## Features
 
 - [x] Support Chinese/English multi-language switch

docs/en_US/case/case4.md

@@ -3,7 +3,6 @@ Contributor:
 + [dysf888](https://github.com/dysf888)
 
 GitHub project: [fake-nezha-agent](https://github.com/dysf888/fake-nezha-agent)（Chinese）  
-Mirror backup, non-real-time update ：[fake-nezha-agent](https://github.com/nezhahq/fake-nezha-agent)（Chinese）  
 
 You can modify the monitoring data uploaded to Dashboard by the Agent  
 Use it for cheating 😈

docs/en_US/case/case5.md

@@ -5,7 +5,6 @@ Contributors:
 
 GitHub project:  [Argo-Nezha-Service-Container](https://github.com/fscarmen2/Argo-Nezha-Service-Container)  
 
-Mirror backup (not live update): [Argo-Nezha-Service-Container](https://github.com/nezhahq/Argo-Nezha-Service-Container)
 * * * *
 
 ## Catalog