Remove more unused imports

Jonathan Turner · Jonathan Turner · commit 01c87d77632e · 2016-07-14T13:25:06.000-04:00
diff --git a/src/libsyntax/codemap.rs b/src/libsyntax/codemap.rs
@@ -827,7 +827,6 @@ impl CodeMapper for CodeMap {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use errors::snippet::StyledString;
     use std::rc::Rc;
 
     #[test]
