Removed unused imports

This fixes #11185.

components/style/font_face.rs

@@ -6,7 +6,6 @@ use computed_values::font_family::FontFamily;
 use cssparser::{AtRuleParser, DeclarationListParser, DeclarationParser, Parser};
 use parser::{ParserContext, log_css_error};
 use properties::longhands::font_family::parse_one_family;
-use std::ascii::AsciiExt;
 use url::Url;
 
 #[derive(Clone, Debug, HeapSizeOf, PartialEq, Eq, Deserialize, Serialize)]

components/style/media_queries.rs

@@ -6,7 +6,6 @@ use app_units::Au;
 use cssparser::{Delimiter, Parser, Token};
 use euclid::size::{Size2D, TypedSize2D};
 use properties::longhands;
-use std::ascii::AsciiExt;
 use util::geometry::ViewportPx;
 use values::specified;
 

components/style/properties/properties.mako.rs

@@ -1368,7 +1368,7 @@ pub fn cascade<C: ComputedValues>(
                cached_style: Option<<&C>,
                mut error_reporter: StdBox<ParseErrorReporter + Send>)
                -> (C, bool) {
-    use properties::style_struct_traits::{Border, Box, Color, Font, Outline};
+    use properties::style_struct_traits::{Border, Box, Font, Outline};
     let initial_values = C::initial_values();
     let (is_root_element, inherited_style) = match parent_style {
         Some(parent_style) => (false, parent_style),

components/style/selector_matching.rs

@@ -7,9 +7,9 @@
 
 use dom::PresentationalHintsSynthetizer;
 use element_state::*;
-use error_reporting::{ParseErrorReporter, StdoutErrorReporter};
+use error_reporting::StdoutErrorReporter;
 use media_queries::{Device, MediaType};
-use properties::{self, ComputedValues, PropertyDeclaration, PropertyDeclarationBlock};
+use properties::{self, PropertyDeclaration, PropertyDeclarationBlock};
 use restyle_hints::{ElementSnapshot, RestyleHint, DependencySet};
 use selector_impl::{SelectorImplExt, ServoSelectorImpl};
 use selectors::Element;

components/style/stylesheets.rs

@@ -12,7 +12,6 @@ use parser::{ParserContext, log_css_error};
 use properties::{PropertyDeclarationBlock, parse_property_declaration_list};
 use selectors::parser::{Selector, SelectorImpl, parse_selector_list};
 use smallvec::SmallVec;
-use std::ascii::AsciiExt;
 use std::cell::Cell;
 use std::iter::Iterator;
 use std::marker::PhantomData;

components/style/viewport.rs

@@ -512,7 +512,6 @@ impl MaybeNew for ViewportConstraints {
                      rule: &ViewportRule)
                      -> Option<ViewportConstraints>
     {
-        use num_traits::{Float, ToPrimitive};
         use std::cmp;
 
         if rule.declarations.is_empty() {