test: enable addons-napi/test_reference

Fixed by upstream PR nodejs/node#13121

Resolves nodejs#246

Author: kfarnung

test/addons-napi/test_reference/test.js

@@ -4,12 +4,6 @@
 const common = require('../../common');
 const assert = require('assert');
 
-if (common.isChakraEngine) {
-  common.skip('Skipped for node-chakracore till #246 is fixed.');
-  return;
-}
-
-
 const test_reference = require(`./build/${common.buildType}/test_reference`);
 
 // This test script uses external values with finalizer callbacks