Revert "Fixes #17220: Fixed widgets with no options"

This reverts commit a7f98964151d5894d9862fb0a1bf80040de86b69.

framework/CHANGELOG.md

@@ -1,10 +1,10 @@
 Yii Framework 2 Change Log
 ==========================
 
-2.0.17.1 under development
+2.0.18 under development
 ------------------------
 
-- Bug #17220: Fixed widgets with no options (samdark)
+- no changes in this release.
 
 
 2.0.17 March 22, 2019

framework/widgets/ActiveField.php

@@ -764,10 +764,6 @@ class ActiveField extends Component
     public function widget($class, $config = [])
     {
         foreach ($this->inputOptions as $key => $value) {
-            if (!isset($config['options'])) {
-                $config['options'] = [];
-            }
-
             if (!isset($config['options'][$key])) {
                 $config['options'][$key] = $value;
             }