diff --git a/X10D/src/Collections/SpanExtensions.cs b/X10D/src/Collections/SpanExtensions.cs
index 1aee61d..ac2fd2b 100644
--- a/X10D/src/Collections/SpanExtensions.cs
+++ b/X10D/src/Collections/SpanExtensions.cs
@@ -1,9 +1,4 @@
-#if NET5_0_OR_GREATER
-using System.Runtime.CompilerServices;
-using System.Runtime.InteropServices;
-#endif
-
-namespace X10D.Collections;
+namespace X10D.Collections;
 
 /// <summary>
 ///     Extension methods for <see cref="Span{T}" /> and <see cref="ReadOnlySpan{T}" />