Remove CSSVariables RuntimeEnabledFeatures flag (status=stable)

third_party/WebKit/Source/build/scripts/templates/CSSPropertyMetadata.cpp.tmpl

 {% from 'macros.tmpl' import license %}
 {{license()}}
 
 #include "core/css/CSSPropertyMetadata.h"
 
 #include "platform/RuntimeEnabledFeatures.h"
 #include <bitset>
 
 namespace blink {
 {% for flag, function_name in switches %}
@@ skipping 30 matching lines @@
         {% endfor %}
         {% for property_id, property in properties.items() if property.is_internal %}
         enabledProperties->reset({{property_id}} - {{first_enum_value}});
         {% endfor %}
     }
 
     if (unresolvedProperty >= {{first_enum_value}})
         return enabledProperties->test(property - {{first_enum_value}});
 
     if (unresolvedProperty == CSSPropertyVariable)
-        return RuntimeEnabledFeatures::cssVariablesEnabled();
+        return true;
     ASSERT(unresolvedProperty == CSSPropertyApplyAtRule);
     return RuntimeEnabledFeatures::cssApplyAtRulesEnabled();
 }
 
 void CSSPropertyMetadata::filterEnabledCSSPropertiesIntoVector(const CSSPropertyID* properties, size_t propertyCount, Vector<CSSPropertyID>& outVector)
 {
     for (unsigned i = 0; i < propertyCount; i++) {
         CSSPropertyID property = properties[i];
         if (isEnabledProperty(property))
             outVector.append(property);
     }
 }
 
 bool CSSPropertyMetadata::isDescriptorOnly(CSSPropertyID property)
 {
     return property >= {{descriptors[0].property_id}} && property <= {{descriptors[-1].property_id}};
 }
 
 } // namespace blink