IntegrateLD_MIS not supported on GLES2

ScriptableRenderPipeline/Core/CoreRP/ShaderLibrary/ImageBasedLighting.hlsl

 }
 #else
 // Not supported due to lack of random library in GLES 2
-ERROR_ON_UNSUPPORTED_FUNCTION(IntegrateGGXAndDisneyFGD)
+#define IntegrateGGXAndDisneyFGD ERROR_ON_UNSUPPORTED_FUNCTION(IntegrateGGXAndDisneyFGD)
 #endif
 
 uint GetIBLRuntimeFilterSampleCount(uint mipLevel)
     return i;
 }
 
+#if !defined SHADER_API_GLES
 real4 IntegrateLD_MIS(TEXTURECUBE_ARGS(envMap, sampler_envMap),
                        TEXTURE2D(marginalRowDensities),
                        TEXTURE2D(conditionalDensities),
 
     return real4(lightInt / cbsdfInt, 1.0);
 }
+#else
+// Not supported due to lack of random library in GLES 2
+#define IntegrateLD_MIS ERROR_ON_UNSUPPORTED_FUNCTION(IntegrateLD_MIS)
+#endif
 
 // Little helper to share code between sphere and box reflection probe.
 // This function will fade the mask of a reflection volume based on normal orientation compare to direction define by the center of the reflection volume.