[bindings] Remove usage of custom binding for namedPropertyQuery of CSSStyleDeclaration

Source/bindings/core/v8/custom/V8CSSStyleDeclarationCustom.cpp

Index: Source/bindings/core/v8/custom/V8CSSStyleDeclarationCustom.cpp
diff --git a/Source/bindings/core/v8/custom/V8CSSStyleDeclarationCustom.cpp b/Source/bindings/core/v8/custom/V8CSSStyleDeclarationCustom.cpp
index 2625d258589fb29b72ebdfb8a44bc04911378fd4..47fbe85c02f703e5ef669248d9f38a84ee760ba3 100644
--- a/Source/bindings/core/v8/custom/V8CSSStyleDeclarationCustom.cpp
+++ b/Source/bindings/core/v8/custom/V8CSSStyleDeclarationCustom.cpp
@@ -151,18 +151,6 @@ static CSSPropertyID cssPropertyInfo(v8::Local<v8::String> v8PropertyName, v8::I
     return unresolvedProperty;
 }
 
-void V8CSSStyleDeclaration::namedPropertyQueryCustom(v8::Local<v8::Name> v8Name, const v8::PropertyCallbackInfo<v8::Integer>& info)
-{
-    if (!v8Name->IsString())
-        return;
-    // NOTE: cssPropertyInfo lookups incur several mallocs.
-    // Successful lookups have the same cost the first time, but are cached.
-    if (cssPropertyInfo(v8Name.As<v8::String>(), info.GetIsolate())) {
-        v8SetReturnValueInt(info, 0);
-        return;
-    }
-}
-
 void V8CSSStyleDeclaration::namedPropertyGetterCustom(v8::Local<v8::Name> name, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     // Search the style declaration.