removing cdn from metadata

otc_metadata/data/services.yaml

@@ -118,14 +118,6 @@ documents:
     service_type: cce
     title: User Guide
     type: umn
-  - hc_location: usermanual/cdn
-    html_location: docs/cdn/umn
-    link: /content-delivery-network/umn/
-    pdf_name: cdn-umn
-    rst_location: umn/source
-    service_type: cdn
-    title: User Guide
-    type: umn
   - hc_location: api/ces
     html_location: docs/ces/api-ref
     link: /cloud-eye/api-ref/
@@ -1025,19 +1017,6 @@ services:
     teams:
       - name: docs-container-rw
         permission: write
-  - repositories:
-      - environment: internal
-        repo: docs/content-delivery-network
-        type: gitea
-      - environment: public
-        repo: opentelekomcloud-docs/content-delivery-network
-        type: github
-    service_category: network
-    service_title: Content Delivery Network (Akamai)
-    service_type: cdn
-    teams:
-      - name: docs-network-rw
-        permission: write
   - repositories:
       - environment: internal
         repo: docs/cloud-eye