Removes VariableDataInterface.h from Gems/GraphCanvas

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

Gems/GraphCanvas/Code/StaticLib/GraphCanvas/Components/NodePropertyDisplay/VariableDataInterface.h

@@ -1,27 +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 "DataInterface.h"
-
-namespace GraphCanvas
-{
-    class VariableReferenceDataInterface 
-        : public DataInterface
-    {
-    public:
-        // Returns the Uuid that represents the varaible assigned to this value.
-        virtual AZ::Uuid GetVariableReference() const = 0;
-
-        // Sets the entity reference that 
-        virtual void AssignVariableReference(const AZ::Uuid& variableId) = 0;
-
-        // Returns the type of variable that should be assigned to this value.
-        virtual AZ::Uuid GetVariableDataType() const = 0;
-    };
-}

Gems/ScriptCanvas/Code/Editor/Include/ScriptCanvas/GraphCanvas/NodeDescriptorBus.h

@@ -27,7 +27,6 @@
 namespace GraphCanvas
 {
     class StringDataInterface;
-    class VariableReferenceDataInterface;
 }
 
 namespace ScriptCanvasEditor