Merge pull request #2521 from keveleigh/AssetCleanup

vNext Asset Clean-up

Author: StephenHodgson

Assets/MixedRealityToolkit-Examples/Demos/Boundary/Scenes/BoundaryVisualization.unity

@@ -4,7 +4,7 @@
 Material:
   serializedVersion: 6
   m_ObjectHideFlags: 0
-  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabParentObject: {fileID: 0}
   m_PrefabInternal: {fileID: 0}
   m_Name: ShaderBallClippingPlane
   m_Shader: {fileID: 4800000, guid: d45c0efca53019e43891b0f610f8146e, type: 3}

Assets/MixedRealityToolkit-Examples/Demos/StandardShader/Materials/ShaderBallClippingPlane.mat

@@ -4,7 +4,7 @@
 Material:
   serializedVersion: 6
   m_ObjectHideFlags: 0
-  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabParentObject: {fileID: 0}
   m_PrefabInternal: {fileID: 0}
   m_Name: ShaderBallClippingPlaneInner
   m_Shader: {fileID: 4800000, guid: d45c0efca53019e43891b0f610f8146e, type: 3}