Remove pendingRequests check from ember-testing internal API

[Copilot]

settled.ts was summing request counts from two sources: locally-tracked jQuery AJAX hooks and ember-testing/lib/test/pending_requests (a private internal API). This removes the dependency on the latter.

Changes

• addon/src/settled.ts: Remove import of pendingRequests from ember-testing/lib/test/pending_requests; simplify pendingRequests() to return only the local jQuery-tracked request count

-import { pendingRequests as _internalGetPendingRequestsCount } from 'ember-testing/lib/test/pending_requests';

 function pendingRequests() {
-  const localRequestsPending = requests !== undefined ? requests.length : 0;
-  const internalRequestsPending = _internalGetPendingRequestsCount();
-  return localRequestsPending + internalRequestsPending;
+  return requests !== undefined ? requests.length : 0;
 }

[kategengler]

I have checked and even back in ember-source 4.0.0 this was no longer being incremented or decremented in ember-source, so this is safe to remove in a point release here.