servo: Merge #5708 - Remove an unused import (from Ms2ger:warnings); r=saneyuki

Source-Repo: https://github.com/servo/servo
Source-Revision: 96b20bc2d33092c8380f8bd4ea0e1220fd6f4e5a

servo/components/style/properties.mako.rs

@@ -2699,7 +2699,7 @@ pub mod longhands {
         use values::computed::{Context, ToComputedValue};
         use values::specified::{Angle, Length};
         use values::CSSFloat;
-        use cssparser::{self, ToCss};
+        use cssparser::ToCss;
         use text_writer::{self, TextWriter};
 
         #[derive(Clone, PartialEq)]