Docs: Removed menu links to SDK Reference until we are ready for 7.0 (#22509)

docs/sources/menu.yaml

@@ -343,17 +343,6 @@
     link: /http_api/team/
     link: /http_api/team/
   - name: Users
   - name: Users
     link: /http_api/user/
     link: /http_api/user/
-- name: SDK Reference
-  link: /packages_api/
-  children:
-  - name: "@grafana/data"
-    link: /packages_api/data/
-  - name: "@grafana/e2e"
-    link: /packages_api/e2e/
-  - name: "@grafana/runtime"
-    link: /packages_api/runtime/
-  - name: "@grafana/ui"
-    link: /packages_api/ui/
 - name: Developers
 - name: Developers
   link: /developers/
   link: /developers/
   children:
   children: