Address unused usings.

src/TypeNameInterpretation/Delimiters.cs

@@ -1,6 +1,9 @@
 // Copyright (c) Brian Reichle.  All Rights Reserved.  Licensed under the MIT License.  See LICENSE in the project root for license information.
 using System;
+
+#if NET
 using System.Buffers;
+#endif
 
 namespace TypeNameInterpretation;
 

src/TypeNameInterpretation/FrameworkExtensions/ConvertShims.cs

@@ -4,7 +4,10 @@
 using System.Diagnostics;
 using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
+
+#if !NET
 using TypeNameInterpretation;
+#endif
 
 namespace System;
 

src/TypeNameInterpretation/InsFormatter.cs

@@ -1,8 +1,11 @@
 // Copyright (c) Brian Reichle.  All Rights Reserved.  Licensed under the MIT License.  See LICENSE in the project root for license information.
 using System;
-using System.Buffers;
 using System.Text;
 
+#if NET
+using System.Buffers;
+#endif
+
 namespace TypeNameInterpretation;
 
 public static class InsFormatter

src/TypeNameInterpretation/InsParser.cs

@@ -1,9 +1,12 @@
 // Copyright (c) Brian Reichle.  All Rights Reserved.  Licensed under the MIT License.  See LICENSE in the project root for license information.
 using System;
-using System.Buffers;
 using System.Collections.Immutable;
 using System.Text;
 
+#if NET
+using System.Buffers;
+#endif
+
 namespace TypeNameInterpretation;
 
 static class InsParser