Clean up

src/Common/EnumerableExtensions.cs

@@ -1,6 +1,4 @@
-using System.Diagnostics.CodeAnalysis;
-
-namespace Moq.Analyzers.Common;
+namespace Moq.Analyzers.Common;
 
 internal static class EnumerableExtensions
 {
@@ -19,7 +17,6 @@ internal static class EnumerableExtensions
     /// <inheritdoc cref="DefaultIfNotSingle{TSource}(IEnumerable{TSource}, Func{TSource, bool})"/>
     /// <param name="source">The collection to enumerate.</param>
     /// <param name="predicate">A function to test each element for a condition.</param>
-    [SuppressMessage("Performance", "ECS0900:Minimize boxing and unboxing", Justification = "Should revisit. Suppressing for now to unblock refactor.")]
     public static TSource? DefaultIfNotSingle<TSource>(this ImmutableArray<TSource> source, Func<TSource, bool> predicate)
     {
         return source.AsEnumerable().DefaultIfNotSingle(predicate);