[Port] [6000.3] Resolve Vulkan define redefinition error.

Author: svc-reach-platform-support

Packages/com.unity.shadergraph/Editor/Generation/Targets/BuiltIn/ShaderLibrary/Shim/UIShim.hlsl

@@ -9,4 +9,13 @@
 #undef SAMPLE_DEPTH_TEXTURE
 #undef SAMPLE_DEPTH_TEXTURE_LOD
 
+#ifdef SHADER_API_VULKAN
+#undef UNITY_PRETRANSFORM_TO_DISPLAY_ORIENTATION
+#undef UNITY_DISPLAY_ORIENTATION_PRETRANSFORM_0
+#undef UNITY_DISPLAY_ORIENTATION_PRETRANSFORM_90
+#undef UNITY_DISPLAY_ORIENTATION_PRETRANSFORM_180
+#undef UNITY_DISPLAY_ORIENTATION_PRETRANSFORM_270
+#undef UNITY_DISPLAY_ORIENTATION_PRETRANSFORM
+#endif
+
 #include "Internal/UnityUIE.cginc"