Some cleanup and minor fixes

Packages/com.unity.postprocessing@3.2.2/PostProcessing/PostProcessResources.asset

@@ -127,7 +127,6 @@ MonoBehaviour:
     multiScaleAORender: {fileID: 7200000, guid: 34a460e8a2e66c243a9c12024e5a798d, type: 3}
     multiScaleAOUpsample: {fileID: 7200000, guid: 600d6212b59bb40409d19d750b5fd1e9, type: 3}
     gaussianDownsample: {fileID: 7200000, guid: 6dba4103d23a7904fbc49099355aff3e, type: 3}
-    casSharpening: {fileID: 7200000, guid: 00e3ffafadd35564780d8a12adcbeff7, type: 3}
     fsr2Upscaler:
       computeLuminancePyramidPass: {fileID: 7200000, guid: 04c3480675e29a340808141e68d4cc8b, type: 3}
       reconstructPreviousDepthPass: {fileID: 7200000, guid: 5060dfafe45aa67459629186ceb7464e, type: 3}

Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/PostProcessLayer.cs

@@ -2,7 +2,6 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using UnityEngine.Assertions;
-using UnityEngine.Serialization;
 
 namespace UnityEngine.Rendering.PostProcessing
 {

Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/PostProcessResources.cs

@@ -216,11 +216,6 @@ namespace UnityEngine.Rendering.PostProcessing
             /// </summary>
             public ComputeShader gaussianDownsample;
 
-            /// <summary>
-            /// The compute shader used by the CAS sharpening filter.
-            /// </summary>
-            public ComputeShader casSharpening;
-            
             /// <summary>
             /// Compute shaders used by the FidelityFX Super Resolution 2 (FSR2) Upscaler.
             /// </summary>

Packages/fidelityfx.fsr

@@ -1 +1 @@
-Subproject commit a1a037a8ec24b495091726da0a3e248fdf273416
+Subproject commit c82e131ee81e8555cf2ccfb27585c274211d752c