Downgrade Unsafe package [test]

src/ImageSharp/ImageSharp.csproj

@@ -47,6 +47,10 @@
     <PackageReference Include="System.Memory" Version="4.5.0" />
     <PackageReference Include="System.Runtime.CompilerServices.Unsafe" Version="4.5.0" />
   </ItemGroup>
+
+  <ItemGroup Condition=" '$(TargetFramework)' == 'netcoreapp2.1'">
+    <PackageReference Include="System.Runtime.CompilerServices.Unsafe" Version="4.4.0" />
+  </ItemGroup>
   
   <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.1' OR '$(TargetFramework)' == 'netstandard1.3'">
     <PackageReference Include="System.IO.Compression" Version="4.3.0" />

tests/ImageSharp.Tests/Drawing/Text/DrawTextOnImageTests.cs

@@ -1,25 +1,20 @@
 // Copyright (c) Six Labors and contributors.
 // Licensed under the Apache License, Version 2.0.
 
-using System.Numerics;
-
+using System;
+using System.Linq;
+using System.Text;
 using SixLabors.Fonts;
 using SixLabors.ImageSharp.PixelFormats;
 using SixLabors.ImageSharp.Processing;
-using SixLabors.ImageSharp.Processing.Drawing;
 using SixLabors.ImageSharp.Processing.Text;
+using SixLabors.Primitives;
 
 using Xunit;
 // ReSharper disable InconsistentNaming
 
 namespace SixLabors.ImageSharp.Tests.Drawing.Text
 {
-    using System;
-    using System.Linq;
-    using System.Text;
-
-    using SixLabors.Primitives;
-
     [GroupOutput("Drawing/Text")]
     public class DrawTextOnImageTests
     {

tests/ImageSharp.Tests/ImageSharp.Tests.csproj

@@ -25,10 +25,6 @@
   <ItemGroup>
     <None Include="PixelFormats\PixelOperationsTests.Blender.cs" />
   </ItemGroup>
-
-  <ItemGroup Condition=" '$(TargetFramework)' == 'netcoreapp2.0'">
-    <PackageReference Include="System.Runtime.CompilerServices.Unsafe" Version="4.5.0" />
-  </ItemGroup>
   
   <ItemGroup>
     <PackageReference Include="Microsoft.CSharp" Version="4.5.0" />