Remove telegram link from readme

.github/ISSUE_TEMPLATE/config.yml

@@ -6,9 +6,6 @@ contact_links:
   - name: Chat with people on Discord
     url: https://discord.gg/Cav9nYX
     about: If you wanna chill or brainstorm, here's the place to do that.
-  - name: Don't talk about TShock
-    url: https://t.me/refugeecamp
-    about: Where the TShock developers chat about nothing related to TShock.
   - name: 在QQ群提问
     url: https://jq.qq.com/?_wv=1027&k=5GJZCe4
     about: 如果你不会英语或想使用中文进行交流，可以加入我们的官方QQ群