--- a/accessible/interfaces/nsIAccessibilityService.idl
+++ b/accessible/interfaces/nsIAccessibilityService.idl
@@ -93,16 +93,8 @@ interface nsIAccessibilityService : nsIS
    */
   void setLogging(in ACString aModules);
 
   /**
    * Return true if the given module is logged.
    */
   boolean isLogged(in AString aModule);
 };
-
-/**
- * @deprecated, use nsIAccessibilityService instead.
- */
-[scriptable, builtinclass, uuid(d85e0cbe-47ce-490c-8488-f821dd2be0c2)]
-interface nsIAccessibleRetrieval : nsIAccessibilityService
-{
-};

--- a/accessible/xpcom/xpcAccessibilityService.cpp
+++ b/accessible/xpcom/xpcAccessibilityService.cpp
@@ -86,18 +86,17 @@ xpcAccessibilityService::Release(void)
         nsITimer::TYPE_ONE_SHOT,
         "xpcAccessibilityService::Release");
     }
   }
 
   return count;
 }
 
-NS_IMPL_QUERY_INTERFACE(xpcAccessibilityService, nsIAccessibilityService,
-                                                 nsIAccessibleRetrieval)
+NS_IMPL_QUERY_INTERFACE(xpcAccessibilityService, nsIAccessibilityService)
 
 NS_IMETHODIMP
 xpcAccessibilityService::GetApplicationAccessible(nsIAccessible** aAccessibleApplication)
 {
   NS_ENSURE_ARG_POINTER(aAccessibleApplication);
 
   NS_IF_ADDREF(*aAccessibleApplication = XPCApplicationAcc());
   return NS_OK;

--- a/accessible/xpcom/xpcAccessibilityService.h
+++ b/accessible/xpcom/xpcAccessibilityService.h
@@ -2,23 +2,22 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #ifndef mozilla_a11y_xpcAccessibilityService_h_
 #define mozilla_a11y_xpcAccessibilityService_h_
 
 #include "nsIAccessibilityService.h"
 
-class xpcAccessibilityService : public nsIAccessibleRetrieval
+class xpcAccessibilityService : public nsIAccessibilityService
 {
 
 public:
   NS_DECL_ISUPPORTS
   NS_DECL_NSIACCESSIBILITYSERVICE
-  NS_DECL_NSIACCESSIBLERETRIEVAL
 
   /**
    * Return true if xpc accessibility service is in use.
    */
   static bool IsInUse() {
     // When ref count goes down to 1 (held internally as a static reference),
     // it means that there are no more external references and thus it is not in
     // use.