Remove debug messages from lexer

src/lexer.rs

@@ -133,12 +133,10 @@ impl<'a> Iterator for Lexer<'a> {
 
     fn next(&mut self) -> Option<Self::Item> {
         while let Some(tok) = self.inner.next() {
-            println!("ate: {:?}", tok);
             if tok == Token::Newline {
                 self.line_start = self.inner.span().end;
                 self.line_num += 1;
             } else {
-                println!("{}", self.get_info());
                 return Some(tok);
             }
         }