LibWeb: Remove unused StyleProperties::background_repeat()

Userland/Libraries/LibWeb/CSS/ComputedValues.h

@@ -80,11 +80,6 @@ struct BoxShadowData {
     Color color {};
 };
 
-struct BackgroundRepeatData {
-    CSS::Repeat repeat_x;
-    CSS::Repeat repeat_y;
-};
-
 class ComputedValues {
 public:
     CSS::Float float_() const { return m_noninherited.float_; }

Userland/Libraries/LibWeb/CSS/StyleProperties.cpp

@@ -688,16 +688,6 @@ Optional<CSS::Overflow> StyleProperties::overflow(CSS::PropertyID property_id) c
     }
 }
 
-Optional<BackgroundRepeatData> StyleProperties::background_repeat() const
-{
-    auto value = property(CSS::PropertyID::BackgroundRepeat);
-    if (!value.has_value() || !value.value()->is_background_repeat())
-        return {};
-
-    auto& background_repeat = value.value()->as_background_repeat();
-    return BackgroundRepeatData { background_repeat.repeat_x(), background_repeat.repeat_y() };
-}
-
 Optional<CSS::BoxShadowData> StyleProperties::box_shadow() const
 {
     auto value_or_error = property(CSS::PropertyID::BoxShadow);

Userland/Libraries/LibWeb/CSS/StyleProperties.h

@@ -62,7 +62,6 @@ public:
     Optional<CSS::JustifyContent> justify_content() const;
     Optional<CSS::Overflow> overflow_x() const;
     Optional<CSS::Overflow> overflow_y() const;
-    Optional<BackgroundRepeatData> background_repeat() const;
     Optional<CSS::BoxShadowData> box_shadow() const;
     CSS::BoxSizing box_sizing() const;
     Optional<CSS::PointerEvents> pointer_events() const;