Remove Moderator Sample because there is no Moderator API.
Reviewed in https://codereview.appspot.com/6776055/.
diff --git a/docs/dyn/compute_v1beta12.snapshots.html b/docs/dyn/compute_v1beta12.snapshots.html
index bd794df..db3e417 100644
--- a/docs/dyn/compute_v1beta12.snapshots.html
+++ b/docs/dyn/compute_v1beta12.snapshots.html
@@ -228,7 +228,7 @@
   An object of the form:
 
     {
-    "nextPageToken": "A String", # A token used to continue a truncated list request.
+    "nextPageToken": "A String", # A token used to continue a truncated list request (output only).
     "items": [ # The persistent snapshot resources.
       {
           "status": "A String", # The status of the persistent disk snapshot (output only).