Update reference-unified.yml

Removing the reference to SDK version of network traversal.Will update with latest path on release

docs-ref-mapping/reference-unified.yml

@@ -120,11 +120,6 @@
       landingPageType: Service
       children:
       - com.azure.communication.identity*
-    - name: Network Traversal
-      uid: azure.java.sdk.landingpage.services.communication.NetworkTraversal
-      landingPageType: Service
-      children:
-      - com.azure.communication.networktraversal*
     - name: Phone Numbers
       uid: azure.java.sdk.landingpage.services.communication.PhoneNumbers
       href: ~/docs-ref-services/{moniker}/communication-phonenumbers-readme.md