[VFX] Remove error popup when cancelling a drag edge with escape key

Jira: UUM-61583

Steps to repro:
- Create a new HDRP/URP project
- Create a new VFX Graph
- Create two operators that have incompatible slots (`Float` and `Sample Gradient` for instance)
- Drag `Float` connection out and hover it over gradient input slot
- Hit escape to cancel 
- Observe wrong type popup gets stuck and moves around with graph

![Unity_IrNrWdfUSY](https://media.github.cds.internal.unity3d.com/user/4003/files/2a6b8809-0eb9-4e74-bc33-dd4ed7e326b4)

![video](https://jira.unity3d.com/secure/attachment/1368545/WrontTypePopup.mp4)

Author: julienamsellem

Packages/com.unity.visualeffectgraph/Editor/GraphView/Elements/VFXEdgeConnector.cs

@@ -2,14 +2,7 @@
 using System.Linq;
 
 using UnityEditor.Experimental.GraphView;
-using UnityEngine;
 using UnityEngine.UIElements;
-using UnityEngine.Profiling;
-
-using Type = System.Type;
-
-
-using PositionType = UnityEngine.UIElements.Position;
 
 namespace UnityEditor.VFX.UI
 {
@@ -62,6 +55,15 @@ protected override void OnMouseUp(MouseUpEvent e)
             view.StopEdgeDragInfo();
         }
 
+        protected override void Abort()
+        {
+            base.Abort();
+            if (m_Anchor.GetFirstAncestorOfType<VFXView>() is { } view)
+            {
+                view.StopEdgeDragInfo();
+            }
+        }
+
         static List<VisualElement> s_PickedList = new List<VisualElement>();
     }
 }