LibWeb: Remove unused StyleProperties::length_or_fallback function

Userland/Libraries/LibWeb/CSS/StyleProperties.cpp

@@ -85,19 +85,6 @@ CSS::Size StyleProperties::size_value(CSS::PropertyID id) const
     return CSS::Size::make_auto();
 }
 
-Length StyleProperties::length_or_fallback(CSS::PropertyID id, Length const& fallback) const
-{
-    auto value = property(id);
-
-    if (value->is_calculated())
-        return Length::make_calculated(value->as_calculated());
-
-    if (value->has_length())
-        return value->to_length();
-
-    return fallback;
-}
-
 LengthPercentage StyleProperties::length_percentage_or_fallback(CSS::PropertyID id, LengthPercentage const& fallback) const
 {
     return length_percentage(id).value_or(fallback);

Userland/Libraries/LibWeb/CSS/StyleProperties.h

@@ -43,7 +43,6 @@ public:
     RefPtr<StyleValue> maybe_null_property(CSS::PropertyID) const;
 
     CSS::Size size_value(CSS::PropertyID) const;
-    Length length_or_fallback(CSS::PropertyID, Length const& fallback) const;
     LengthPercentage length_percentage_or_fallback(CSS::PropertyID, LengthPercentage const& fallback) const;
     Optional<LengthPercentage> length_percentage(CSS::PropertyID) const;
     LengthBox length_box(CSS::PropertyID left_id, CSS::PropertyID top_id, CSS::PropertyID right_id, CSS::PropertyID bottom_id, const CSS::Length& default_value) const;