Upgrade mateiral upgrader to suit LDRenderLoop needs.

Assets/LowEndRenderLoop/Editor/StandardSpecularToLDMaterialUpgrader.cs

     StandardSpecularToLDMaterialUpgrader(string oldShaderName)
     {
         RenameShader(oldShaderName, "RenderLoop/LowEnd");
+        RemoveTexture("_OcclusionMap");
+        RemoveTexture("_DetailAlbedoMap");
+        RemoveTexture("_DetailNormalMap");
     }
 }

Assets/LowEndRenderLoop/LowEndRenderLoopVikingVillage.unity

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   m_Sun: {fileID: 0}
-  m_IndirectSpecularColor: {r: 0.39918268, g: 0.35051182, b: 0.37674487, a: 1}
+  m_IndirectSpecularColor: {r: 0.13367549, g: 0.101356134, b: 0.11775853, a: 1}
 --- !u!157 &4
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+    m_PVRFilteringGaussRadiusIndirect: 5
+    m_PVRFilteringGaussRadiusAO: 2
+    m_PVRFilteringAtrousColorSigma: 1
+    m_PVRFilteringAtrousNormalSigma: 1
+    m_PVRFilteringAtrousPositionSigma: 1
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 --- !u!196 &5
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   m_AreaSize: {x: 1, y: 1}
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+  m_ColorTemperature: 6570
+  m_UseColorTemperature: 0
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 --- !u!4 &114781287
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+  m_ColorTemperature: 6570
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   m_ShadowAngle: 0
 --- !u!4 &181841811
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+  m_ColorTemperature: 6570
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   m_ShadowRadius: 0
   m_ShadowAngle: 0
 --- !u!4 &290532805
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---- !u!132 &483288875
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 Prefab:
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   m_AreaSize: {x: 1, y: 1}
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+  m_ColorTemperature: 6570
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   m_ShadowAngle: 0
 --- !u!4 &824347041
   m_Name: 
   m_EditorClassIdentifier: 
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   affectSpecular: 1
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   m_AreaSize: {x: 1, y: 1}
   m_BounceIntensity: 1
-  m_CCT: 6570
+  m_ColorTemperature: 6570
+  m_UseColorTemperature: 0
   m_ShadowRadius: 0
   m_ShadowAngle: 0
 --- !u!4 &991787238
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   m_EditorClassIdentifier: 
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+  m_innerSpotPercent: 0
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   affectSpecular: 1
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 --- !u!1001 &1388105999
 Prefab:

Assets/ScriptableRenderPipeline/Editor/MaterialUpgrader.cs

         Dictionary<string, string> m_TextureRename = new Dictionary<string, string>();
         Dictionary<string, string> m_FloatRename = new Dictionary<string, string>();
         Dictionary<string, string> m_ColorRename = new Dictionary<string, string>();
+        List<string> m_TexturesToRemove = new List<string>();
 
         [Flags]
         public enum UpgradeFlags
 
             foreach (var t in m_ColorRename)
                 dstMaterial.SetColor(t.Value, srcMaterial.GetColor(t.Key));
+
+            foreach (var prop in m_TexturesToRemove)
+                dstMaterial.SetTexture(prop, null);
         }
 
         public void RenameShader(string oldName, string newName)
         public void RenameColor(string oldName, string newName)
         {
             m_ColorRename[oldName] = newName;
+        }
+
+        public void RemoveTexture(string name)
+        {
+            m_TexturesToRemove.Add(name);
         }
 
         static bool IsMaterialPath(string path)