Rolback revert "AC-1709: Fix Unit tests"

- This reverts commit 00c74c3.

Author: xmav

app/code/Magento/Theme/view/base/requirejs-config.js

@@ -74,11 +74,6 @@ var config = {
         'jquery/jquery-migrate'
     ],
     config: {
-        mixins: {
-            'jquery': {
-                'jquery/patches/jquery': true
-            }
-        },
         text: {
             'headers': {
                 'X-Requested-With': 'XMLHttpRequest'