removed obsolete sample prefabs

Author: andygruening

Packages/Sequence-Unity/Sequence/Samples~/Demo/Resources/Prefabs/Checkout/CheckoutPanel.prefab

@@ -421,9 +421,9 @@ RectTransform:
   m_Father: {fileID: 1690211465764232964}
   m_RootOrder: 0
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
-  m_AnchorMin: {x: 0, y: 0}
-  m_AnchorMax: {x: 0, y: 0}
-  m_AnchoredPosition: {x: 0, y: 0}
+  m_AnchorMin: {x: 0, y: 1}
+  m_AnchorMax: {x: 0, y: 1}
+  m_AnchoredPosition: {x: 150, y: -10}
   m_SizeDelta: {x: 270, y: 20}
   m_Pivot: {x: 0.5, y: 0.5}
 --- !u!222 &1690211464671671475
@@ -1736,7 +1736,7 @@ PrefabInstance:
       objectReference: {fileID: 0}
     - target: {fileID: 5517699062687508381, guid: 7cf47fcef03d043179b4447c9980330f, type: 3}
       propertyPath: m_AnchoredPosition.x
-      value: 0
+      value: 45.6525
       objectReference: {fileID: 0}
     - target: {fileID: 5517699062687508381, guid: 7cf47fcef03d043179b4447c9980330f, type: 3}
       propertyPath: m_AnchoredPosition.y