Remove comments by Roslyn

Program.cs

using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.CSharp;

var programBefore = @"
public class MyClass
{
    public void MyMethod()
    {
        // Output
        Console.WriteLine(""Hello, world!"");
    }
}
";

var tree = CSharpSyntaxTree.ParseText(programBefore).GetCompilationUnitRoot();
var commentTrivias = tree.DescendantTrivia().Where(trivia
        => trivia.IsKind(SyntaxKind.SingleLineCommentTrivia)
        || trivia.IsKind(SyntaxKind.MultiLineCommentTrivia));
var commentsRemoved = tree.ReplaceTrivia(commentTrivias, (_, _) => SyntaxFactory.CarriageReturn);
var programAfter = commentsRemoved.ToString();

Console.WriteLine(programAfter);