remove debug printing

compiler-core/src/parse.rs

···
                         // Give a better error when there is two consecutive spreads
                         // like `[..wibble, ..wabble, woo]`. However, if there's other
                         // elements after the tail of the list
-                        println!("{:#?}", self.tok0);
-                        println!("{:#?}", elements_after_tail);
-
                         if let Some((second_start, second_end)) = self.maybe_one(&Token::DotDot) {
                             let _second_tail = self.parse_expression();