fix build

tests/ImageSharp.Tests/Common/SimdUtilsTests.cs

@@ -5,9 +5,9 @@ using System;
 using System.Linq;
 using System.Numerics;
 using System.Runtime.CompilerServices;
-using System.Runtime.InteropServices;
+#if SUPPORTS_RUNTIME_INTRINSICS
 using System.Runtime.Intrinsics.X86;
-using SixLabors.ImageSharp.Common.Tuples;
+#endif
 using SixLabors.ImageSharp.PixelFormats;
 using SixLabors.ImageSharp.Tests.TestUtilities;
 using Xunit;