duplicated bus that is in AzToolsFramework, this one is not used

Signed-off-by: Esteban Papp <81431996+amznestebanpapp@users.noreply.github.com>

Code/Editor/EditorPreferencesBus.h

@@ -1,24 +0,0 @@
-/*
- * Copyright (c) Contributors to the Open 3D Engine Project.
- * For complete copyright and license terms please see the LICENSE at the root of this distribution.
- *
- * SPDX-License-Identifier: Apache-2.0 OR MIT
- *
- */
-
-#pragma once
-
-#include <AzCore/EBus/EBus.h>
-
-//! Allows handlers to be notified when settings are changed to refresh accordingly
-class EditorPreferencesNotifications
-    : public AZ::EBusTraits
-{
-public:
-    static const AZ::EBusHandlerPolicy HandlerPolicy = AZ::EBusHandlerPolicy::Multiple;
-    static const AZ::EBusAddressPolicy AddressPolicy = AZ::EBusAddressPolicy::Single;
-        
-    //! Notifies about changes in the Editor Preferences
-    virtual void OnEditorPreferencesChanged() {}
-};
-using EditorPreferencesNotificationBus = AZ::EBus<EditorPreferencesNotifications>;