Remove empty Main class wrapper from Main.java

Co-authored-by: Garciat <118277+Garciat@users.noreply.github.com>

Author: Copilot

src/main/java/com/garciat/typeclasses/Main.java

@@ -37,9 +37,6 @@
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
-public final class Main {
-  private Main() {}
-}
 
 // Internal type parsing
 sealed interface ParsedType {