Remove checks for within parent bonds in resize handles

com.unity.shadergraph/Editor/Drawing/Blackboard/BlackboardProvider.cs

             blackboard.AddManipulator(m_WindowDraggable);
 
             m_ResizeBorderFrame = new ResizeBorderFrame(blackboard) { name = "resizeBorderFrame" };
-            m_ResizeBorderFrame.stayWithinParentBounds = true;
             blackboard.shadow.Add(m_ResizeBorderFrame);
 
             m_Section = new BlackboardSection { headerVisible = false };

com.unity.shadergraph/Editor/Drawing/Inspector/MasterPreviewView.cs

             Add(preview);
 
             m_PreviewResizeBorderFrame = new ResizeBorderFrame(previewTextureView, this) { name = "resizeBorderFrame" };
-            m_PreviewResizeBorderFrame.stayWithinParentBounds = true;
             m_PreviewResizeBorderFrame.maintainAspectRatio = true;
             Add(m_PreviewResizeBorderFrame);
 

com.unity.shadergraph/Editor/Drawing/Manipulators/ResizeBorderFrame.cs

 {
     List<ResizeSideHandle> m_ResizeSideHandles;
 
-    bool m_StayWithinParentBounds;
-
-    public bool stayWithinParentBounds
-    {
-        get { return m_StayWithinParentBounds; }
-        set
-        {
-            m_StayWithinParentBounds = value;
-            foreach (ResizeSideHandle resizeHandle in m_ResizeSideHandles)
-            {
-                resizeHandle.stayWithinParentBounds = value;
-            }
-        }
-    }
-
     bool m_MaintainApsectRatio;
 
     public bool maintainAspectRatio
 
         m_ResizeSideHandles = new List<ResizeSideHandle>();
 
-        // Add resize handles along the border 
+        // Add resize handles along the border
         m_ResizeSideHandles.Add(new ResizeSideHandle(target, container, ResizeHandleAnchor.TopLeft));
         m_ResizeSideHandles.Add(new ResizeSideHandle(target, container, ResizeHandleAnchor.Top));
         m_ResizeSideHandles.Add(new ResizeSideHandle(target, container, ResizeHandleAnchor.TopRight));

com.unity.shadergraph/Editor/Drawing/Manipulators/ResizeSideHandle.cs

 
         WindowDockingLayout m_WindowDockingLayout;
 
-        bool m_StayWithinParentBounds;
-
-        public bool stayWithinParentBounds
-        {
-            get { return m_StayWithinParentBounds; }
-            set { m_StayWithinParentBounds = value; }
-        }
-
         bool m_MaintainAspectRatio;
 
         public bool maintainAspectRatio
         void InitialLayoutSetup(GeometryChangedEvent evt)
         {
             m_ResizeTarget.UnregisterCallback<GeometryChangedEvent>(InitialLayoutSetup);
-        }
-
-        Vector2 BoundedMousePosition(Vector2 mousePosition)
-        {
-            mousePosition = m_Container.parent.WorldToLocal(mousePosition);
-
-            if (!stayWithinParentBounds)
-                return mousePosition;
-
-            mousePosition.x = Mathf.Clamp(mousePosition.x, 5f, m_Container.parent.layout.width);
-            mousePosition.y = Mathf.Clamp(mousePosition.y, 5f, m_Container.parent.layout.height);
-
-            return mousePosition;
         }
 
         void HandleResizeFromTop(MouseMoveEvent mouseMoveEvent)