(highlight) fxiup test suite

Author: keithamus

crates/hdx_highlight/src/test_helpers.rs

@@ -1,7 +1,6 @@
 use core::fmt;
 
 use crate::TokenHighlighter;
-use bumpalo::{collections::Vec, Bump};
 use css_lexer::{Cursor, Token};
 use css_parse::CursorSink;