Checking for Cubemap array support on OGL based on what front end compiler expects instead of SM capability.

ScriptableRenderPipeline/Core/CoreRP/ShaderLibrary/API/GLCore.hlsl

 #define SAMPLE_TEXTURECUBE(textureName, samplerName, coord3)                        textureName.Sample(samplerName, coord3)
 #define SAMPLE_TEXTURECUBE_LOD(textureName, samplerName, coord3, lod)               textureName.SampleLevel(samplerName, coord3, lod)
 #define SAMPLE_TEXTURECUBE_BIAS(textureName, samplerName, coord3, bias)             textureName.SampleBias(samplerName, coord3, bias)
-#if OPENGL4_1_SM5
-#define SAMPLE_TEXTURECUBE_ARRAY(textureName, samplerName, coord3, index)           textureName.Sample(samplerName, float4(coord3, index))
-#define SAMPLE_TEXTURECUBE_ARRAY_LOD(textureName, samplerName, coord3, index, lod)  textureName.SampleLevel(samplerName, float4(coord3, index), lod)
-#define SAMPLE_TEXTURECUBE_ARRAY_BIAS(textureName, samplerName, coord3, index, bias) textureName.SampleBias(samplerName, float4(coord3, index), bias)
-#else
+#ifdef UNITY_NO_CUBEMAP_ARRAY
+#else
+#define SAMPLE_TEXTURECUBE_ARRAY(textureName, samplerName, coord3, index)           textureName.Sample(samplerName, float4(coord3, index))
+#define SAMPLE_TEXTURECUBE_ARRAY_LOD(textureName, samplerName, coord3, index, lod)  textureName.SampleLevel(samplerName, float4(coord3, index), lod)
+#define SAMPLE_TEXTURECUBE_ARRAY_BIAS(textureName, samplerName, coord3, index, bias)textureName.SampleBias(samplerName, float4(coord3, index), bias)
 #endif
 #define SAMPLE_TEXTURE3D(textureName, samplerName, coord3)                          textureName.Sample(samplerName, coord3)
 

ScriptableRenderPipeline/Core/CoreRP/ShaderLibrary/API/GLES3.hlsl

 #define SAMPLE_TEXTURECUBE_LOD(textureName, samplerName, coord3, lod)               textureName.SampleLevel(samplerName, coord3, lod)
 #define SAMPLE_TEXTURECUBE_BIAS(textureName, samplerName, coord3, bias)             textureName.SampleBias(samplerName, coord3, bias)
 
-#if GLES3_1_AEP
-#define SAMPLE_TEXTURECUBE_ARRAY(textureName, samplerName, coord3, index)           textureName.Sample(samplerName, float4(coord3, index))
-#define SAMPLE_TEXTURECUBE_ARRAY_LOD(textureName, samplerName, coord3, index, lod)  textureName.SampleLevel(samplerName, float4(coord3, index), lod)
-#define SAMPLE_TEXTURECUBE_ARRAY_BIAS(textureName, samplerName, coord3, index, bias)textureName.SampleBias(samplerName, float4(coord3, index), bias)
-#else
+#ifdef UNITY_NO_CUBEMAP_ARRAY
+#else
+#define SAMPLE_TEXTURECUBE_ARRAY(textureName, samplerName, coord3, index)           textureName.Sample(samplerName, float4(coord3, index))
+#define SAMPLE_TEXTURECUBE_ARRAY_LOD(textureName, samplerName, coord3, index, lod)  textureName.SampleLevel(samplerName, float4(coord3, index), lod)
+#define SAMPLE_TEXTURECUBE_ARRAY_BIAS(textureName, samplerName, coord3, index, bias)textureName.SampleBias(samplerName, float4(coord3, index), bias)
 #endif
 
 #define SAMPLE_TEXTURE3D(textureName, samplerName, coord3)                          textureName.Sample(samplerName, coord3)