Removed incorrect depth rejection related code

ScriptableRenderPipeline/HDRenderPipeline/Material/Builtin/BuiltinData.hlsl

     velocity = inBuffer.xy;
 }
 
-void EncodeDistortion(float2 distortion, float distortionBlur, float depthRaw, out float4 outBuffer)
+void EncodeDistortion(float2 distortion, float distortionBlur, out float4 outBuffer)
-    outBuffer = float4(distortion, depthRaw, distortionBlur);
+    outBuffer = float4(distortion, 0.0, distortionBlur);
-void DecodeDistortion(float4 inBuffer, out float2 distortion, out float2 distortionBlur, out float depthRaw)
+void DecodeDistortion(float4 inBuffer, out float2 distortion, out float2 distortionBlur)
-    depthRaw = inBuffer.z;
 }
 
 void GetBuiltinDataDebug(uint paramId, BuiltinData builtinData, inout float3 result, inout bool needLinearToSRGB)

ScriptableRenderPipeline/HDRenderPipeline/RenderPipelineResources/ApplyDistorsion.compute

 
     float2 distortion;
     float2 distortionBlur;
-    float depthRaw;
-    DecodeDistortion(encodedDistortion, distortion, distortionBlur, depthRaw);
+    DecodeDistortion(encodedDistortion, distortion, distortionBlur);
-    // Discard pixels that are in front of the distortion object
-    float distordedDepth = LOAD_TEXTURE2D(_DepthTexture, distortedEncodedDistortionId).r;
-
-    /*if (distordedDepth > depthRaw)
-        return;*/
-
-    float distordedObjectDepth;
-    DecodeDistortion(encodedDistordedDistortion, distordedDistortion, distordedDistortionBlur, distordedObjectDepth);
+    DecodeDistortion(encodedDistordedDistortion, distordedDistortion, distordedDistortionBlur);
 
     // Get source pixel for distortion
     float2 distordedUV = float2(dispatchThreadId + int2(distortion * _FetchBias)) * _Size.zw;

ScriptableRenderPipeline/HDRenderPipeline/ShaderPass/ShaderPassDistortion.hlsl

     GetSurfaceAndBuiltinData(input, V, posInput, surfaceData, builtinData);
 
     float4 outBuffer;
-    EncodeDistortion(builtinData.distortion, builtinData.distortionBlur, posInput.depthRaw, outBuffer);
+    EncodeDistortion(builtinData.distortion, builtinData.distortionBlur, outBuffer);
     return outBuffer;
 }