[web-animations] remove animationShorthandForParsing()

https://bugs.webkit.org/show_bug.cgi?id=265571
rdar://118977751

Reviewed by Antti Koivisto.

There is a dedicated function called `animationShorthandForParsing()` to get the `animation` shorthand
list of longhands specifically for parsing purposes, but that list matches the similar function generated
from `CSSProperties.json` exactly, and so is redundant and should be removed.

* Source/WebCore/css/StylePropertyShorthand.cpp:
(WebCore::animationShorthandForParsing): Deleted.
* Source/WebCore/css/StylePropertyShorthand.h:
* Source/WebCore/css/parser/CSSPropertyParser.cpp:
(WebCore::CSSPropertyParser::parseShorthand):

Canonical link: https://commits.webkit.org/271335@main

Source/WebCore/css/StylePropertyShorthand.cpp

@@ -25,24 +25,6 @@
 
 namespace WebCore {
 
-StylePropertyShorthand animationShorthandForParsing()
-{
-    // Animation-name must come last, so that keywords for other properties in the shorthand
-    // preferentially match those properties.
-    static const CSSPropertyID animationPropertiesForParsing[] = {
-        CSSPropertyAnimationDuration,
-        CSSPropertyAnimationTimingFunction,
-        CSSPropertyAnimationDelay,
-        CSSPropertyAnimationIterationCount,
-        CSSPropertyAnimationDirection,
-        CSSPropertyAnimationFillMode,
-        CSSPropertyAnimationPlayState,
-        CSSPropertyAnimationName
-    };
-
-    return StylePropertyShorthand(CSSPropertyAnimation, animationPropertiesForParsing);
-}
-
 StylePropertyShorthand transitionShorthandForParsing()
 {
     // Similar to animations, we have property after timing-function and delay after

Source/WebCore/css/StylePropertyShorthand.h

@@ -51,8 +51,7 @@ class StylePropertyShorthand {
     CSSPropertyID m_shorthandID { CSSPropertyInvalid };
 };
 
-// Custom StylePropertyShorthand functions.
-StylePropertyShorthand animationShorthandForParsing();
+// Custom StylePropertyShorthand function.
 StylePropertyShorthand transitionShorthandForParsing();
 
 // Returns empty value if the property is not a shorthand.

Source/WebCore/css/parser/CSSPropertyParser.cpp

@@ -2679,7 +2679,7 @@ bool CSSPropertyParser::parseShorthand(CSSPropertyID property, bool important)
     case CSSPropertyColumns:
         return consumeColumns(important);
     case CSSPropertyAnimation:
-        return consumeAnimationShorthand(animationShorthandForParsing(), important);
+        return consumeAnimationShorthand(animationShorthand(), important);
     case CSSPropertyTransition:
         return consumeAnimationShorthand(transitionShorthandForParsing(), important);
     case CSSPropertyTextDecoration: {