HDRP: Remove warning C#

ScriptableRenderPipeline/HDRenderPipeline/HDRP/Editor/BuildPlayer/HDRPVariantStripper.cs

-using System.Collections;
+using System.Collections;
 using System.Collections.Generic;
 using UnityEditor.Build;
 using UnityEditor.Rendering;
         ShaderKeyword m_TileLighting;
         ShaderKeyword m_ClusterLighting;
 
-        ShaderKeyword m_FeatureSSS;
+        //ShaderKeyword m_FeatureSSS;
 
         public HDRPVariantStripper()
         {
             m_TileLighting = new ShaderKeyword("USE_FPTL_LIGHTLIST");
             m_ClusterLighting = new ShaderKeyword("USE_CLUSTERED_LIGHTLIST");
 
-            m_FeatureSSS = new ShaderKeyword("_MATERIAL_FEATURE_SUBSURFACE_SCATTERING");
+            //m_FeatureSSS = new ShaderKeyword("_MATERIAL_FEATURE_SUBSURFACE_SCATTERING");
         }
 
         bool LitShaderStripper(Shader shader, ShaderSnippetData snippet, ShaderCompilerData inputData)

ScriptableRenderPipeline/HDRenderPipeline/HDRP/Lighting/LightLoop/LightLoop.cs

         int m_lightCount = 0;
         int m_densityVolumeCount = 0;
         bool m_enableBakeShadowMask = false; // Track if any light require shadow mask. In this case we will need to enable the keyword shadow mask
-        float m_maxShadowDistance = 0.0f; // Save value from shadow settings
 
         private ComputeShader buildScreenAABBShader { get { return m_Resources.buildScreenAABBShader; } }
         private ComputeShader buildPerTileLightListShader { get { return m_Resources.buildPerTileLightListShader; } }
 
                 // If any light require it, we need to enabled bake shadow mask feature
                 m_enableBakeShadowMask = false;
-                m_maxShadowDistance = shadowSettings.maxShadowDistance;
-
+ 
                 m_lightList.Clear();
 
                 // We need to properly reset this here otherwise if we go from 1 light to no visible light we would keep the old reference active.