Remove Moderator Sample because there is no Moderator API.
Reviewed in https://codereview.appspot.com/6776055/.
diff --git a/docs/dyn/compute_v1beta12.firewalls.html b/docs/dyn/compute_v1beta12.firewalls.html
index 2cdfdb8..7620760 100644
--- a/docs/dyn/compute_v1beta12.firewalls.html
+++ b/docs/dyn/compute_v1beta12.firewalls.html
@@ -264,7 +264,7 @@
   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 firewall resources.
       {
           "kind": "compute#firewall", # Type of the resource.
@@ -295,8 +295,8 @@
         },
     ],
     "kind": "compute#firewallList", # Type of resource.
-    "id": "A String", # Unique identifier for the resource; defined by the server.
-    "selfLink": "A String", # Server defined URL for this resource.
+    "id": "A String", # Unique identifier for the resource; defined by the server (output only).
+    "selfLink": "A String", # Server defined URL for this resource (output only).
   }</pre>
 </div>