Fix incorrect doc comment

Author: Youssef1313

src/NetAnalyzers/CSharp/Microsoft.NetCore.Analyzers/Performance/CSharpDoNotUseCountWhenAnyCanBeUsed.Fixer.cs

@@ -26,7 +26,6 @@ public sealed class CSharpDoNotUseCountWhenAnyCanBeUsedFixer : DoNotUseCountWhen
         /// <param name="expression">If this method returns <see langword="true" />, contains the expression to be used to invoke <c>Any</c>.</param>
         /// <param name="arguments">If this method returns <see langword="true" />, contains the arguments from <c>Any</c> to be used on <c>Count</c>.</param>
         /// <returns><see langword="true" /> if a fixer was found., <see langword="false" /> otherwise.</returns>
-        /// <exception cref="System.NotImplementedException"></exception>
         protected override bool TryGetFixer(
             SyntaxNode node,
             string operation,