Stop suggesting the MS Python Discord server for help (#20499)

Author: brettcannon

.github/ISSUE_TEMPLATE/config.yml

@@ -15,6 +15,3 @@ contact_links:
   - name: Help/Support
     url: https://github.com/microsoft/vscode-python/discussions/categories/q-a
     about: 'Having trouble with the extension? Need help getting something to work?'
-  - name: 'Chat'
-    url: https://aka.ms/python-discord
-    about: 'You can ask for help or chat in the `#vscode` channel of our microsoft-python Discord server'