Remove jQuery usage from ember-testing

packages/ember-testing/index.js

@@ -3,7 +3,6 @@ export { default as Adapter } from './lib/adapters/adapter';
 export { default as setupForTesting } from './lib/setup_for_testing';
 export { default as QUnitAdapter } from './lib/adapters/qunit';
 
-import './lib/support'; // to handle various edge cases
 import './lib/ext/application';
 import './lib/ext/rsvp'; // setup RSVP + run loop integration
 import './lib/helpers'; // adds helpers to helpers object in Test

packages/ember-testing/lib/helpers/find.js

@@ -1,41 +1,10 @@
 /**
 @module ember
 */
-import { get } from '@ember/-internals/metal';
 import { assert } from '@ember/debug';
-import { jQueryDisabled } from '@ember/-internals/views';
 
-/**
-  Finds an element in the context of the app's container element. A simple alias
-  for `app.$(selector)`.
-
-  Example:
-
-  ```javascript
-  var $el = find('.my-selector');
-  ```
-
-  With the `context` param:
-
-  ```javascript
-  var $el = find('.my-selector', '.parent-element-class');
-  ```
-
-  @method find
-  @param {String} selector jQuery selector for element lookup
-  @param {String} [context] (optional) jQuery selector that will limit the selector
-                            argument to find only within the context's children
-  @return {Object} DOM element representing the results of the query
-  @public
-*/
-export default function find(app, selector, context) {
-  if (jQueryDisabled) {
-    assert(
-      'If jQuery is disabled, please import and use helpers from @ember/test-helpers [https://github.com/emberjs/ember-test-helpers]. Note: `find` is not an available helper.'
-    );
-  }
-  let $el;
-  context = context || get(app, 'rootElement');
-  $el = app.$(selector, context);
-  return $el;
+export default function find() {
+  assert(
+    'Please import and use helpers from @ember/test-helpers [https://github.com/emberjs/ember-test-helpers]. Note: `find` is not an available helper.'
+  );
 }

packages/ember-testing/lib/setup_for_testing.js

@@ -1,13 +1,7 @@
 /* global self */
 
 import { setTesting } from '@ember/debug';
-import { jQuery, jQueryDisabled } from '@ember/-internals/views';
 import { getAdapter, setAdapter } from './test/adapter';
-import {
-  incrementPendingRequests,
-  decrementPendingRequests,
-  clearPendingRequests,
-} from './test/pending_requests';
 import Adapter from './adapters/adapter';
 import QUnitAdapter from './adapters/qunit';
 
@@ -31,14 +25,4 @@ export default function setupForTesting() {
   if (!adapter) {
     setAdapter(typeof self.QUnit === 'undefined' ? Adapter.create() : QUnitAdapter.create());
   }
-
-  if (!jQueryDisabled) {
-    jQuery(document).off('ajaxSend', incrementPendingRequests);
-    jQuery(document).off('ajaxComplete', decrementPendingRequests);
-
-    clearPendingRequests();
-
-    jQuery(document).on('ajaxSend', incrementPendingRequests);
-    jQuery(document).on('ajaxComplete', decrementPendingRequests);
-  }
 }