Using cleanup

PerfectNumbers.Core.Tests/Gpu/GpuKernelCompilationTests.cs

@@ -1,10 +1,7 @@
-using System;
-using System.Collections.Generic;
 using System.Reflection;
 using FluentAssertions;
 using ILGPU;
 using ILGPU.Runtime;
-using PerfectNumbers.Core;
 using PerfectNumbers.Core.Gpu;
 using Xunit;
 

PerfectNumbers.Core.Tests/Gpu/PrimeOrderGpuHeuristicsTests.cs

@@ -1,8 +1,6 @@
-using System;
 using System.Numerics;
 using System.Reflection;
 using FluentAssertions;
-using PerfectNumbers.Core;
 using PerfectNumbers.Core.Gpu;
 using Xunit;