Remove the clamp - it is not necessary

Assets/ScriptableRenderLoop/HDRenderLoop/Lighting/TilePass/TilePass.hlsl

 // EnvIndex can also be use to fetch in another array of struct (to  atlas information etc...).
 float4 SampleEnv(LightLoopContext lightLoopContext, int index, float3 texCoord, float lod)
 {
-    lod = min(lod, UNITY_SPECCUBE_LOD_STEPS);
-
     // This code will be inlined as lightLoopContext is hardcoded in the light loop
     if (lightLoopContext.sampleReflection == SINGLE_PASS_CONTEXT_SAMPLE_REFLECTION_PROBES)
     {