Additional test support for Manipulator Ditto commands (#4191)

* additional test support for manipulator ditto

Signed-off-by: hultonha <hultonha@amazon.co.uk>

* tidy-up to changes

Signed-off-by: hultonha <hultonha@amazon.co.uk>

* fix for non-unity build compile error

Signed-off-by: hultonha <hultonha@amazon.co.uk>

Code/Editor/EditorViewportWidget.h

@@ -92,7 +92,6 @@ class SANDBOX_API EditorViewportWidget final
     , private AzFramework::InputSystemCursorConstraintRequestBus::Handler
     , private AzToolsFramework::ViewportInteraction::MainEditorViewportInteractionRequestBus::Handler
     , private AzToolsFramework::ViewportInteraction::EditorEntityViewportInteractionRequestBus::Handler
-    , private AzToolsFramework::ViewportInteraction::EditorModifierKeyRequestBus::Handler
     , private AzFramework::AssetCatalogEventBus::Handler
     , private AZ::RPI::SceneNotificationBus::Handler
 {
@@ -212,9 +211,6 @@ private:
     // EditorEntityViewportInteractionRequestBus overrides ...
     void FindVisibleEntities(AZStd::vector<AZ::EntityId>& visibleEntities) override;
 
-    // EditorModifierKeyRequestBus overrides ...
-    AzToolsFramework::ViewportInteraction::KeyboardModifiers QueryKeyboardModifiers() override;
-
     // Camera::EditorCameraRequestBus overrides ...
     void SetViewFromEntityPerspective(const AZ::EntityId& entityId) override;
     void SetViewAndMovementLockFromEntityPerspective(const AZ::EntityId& entityId, bool lockCameraMovement) override;