LibWeb/CSS: Remove default value for parse_css_value() PropertyID

Every user provides this, and it's not clear what passing
PropertyID::Invalid here actually means.

Author: AtkinsSJ

Libraries/LibWeb/CSS/Parser/Parser.h

@@ -578,7 +578,7 @@ namespace Web {
 GC::Ref<CSS::CSSStyleSheet> parse_css_stylesheet(CSS::Parser::ParsingParams const&, StringView, Optional<::URL::URL> location = {}, Vector<NonnullRefPtr<CSS::MediaQuery>> = {});
 CSS::Parser::Parser::PropertiesAndCustomProperties parse_css_property_declaration_block(CSS::Parser::ParsingParams const&, StringView);
 Vector<CSS::Descriptor> parse_css_descriptor_declaration_block(CSS::Parser::ParsingParams const&, CSS::AtRuleID, StringView);
-RefPtr<CSS::StyleValue const> parse_css_value(CSS::Parser::ParsingParams const&, StringView, CSS::PropertyID property_id = CSS::PropertyID::Invalid);
+RefPtr<CSS::StyleValue const> parse_css_value(CSS::Parser::ParsingParams const&, StringView, CSS::PropertyID);
 RefPtr<CSS::StyleValue const> parse_css_descriptor(CSS::Parser::ParsingParams const&, CSS::AtRuleID, CSS::DescriptorID, StringView);
 Optional<CSS::SelectorList> parse_selector(CSS::Parser::ParsingParams const&, StringView);
 Optional<CSS::SelectorList> parse_selector_for_nested_style_rule(CSS::Parser::ParsingParams const&, StringView);