Update context-non-object-with-promise.js (#790)

Promise constructor accepts only one executor function

test/built-ins/Promise/resolve/context-non-object-with-promise.js

@@ -14,7 +14,7 @@ info: >
 features: [Symbol]
 ---*/
 
-var promise = new Promise(function(){}, function(){});
+var promise = new Promise(function(){});
 
 promise.constructor = undefined;
 assert.throws(TypeError, function() {