Update TOC.yml

Author: huypub

articles/azure-app-configuration/TOC.yml

@@ -290,7 +290,6 @@
           href: ./rest-api-throttling.md
         - name: Versioning
           href: ./rest-api-versioning.md
-      - name: Development
   - name: Client libraries
     items:
     - name: .NET provider