cleanup ref count test

Author: greggman

test/tests/reference-count-tests.js

@@ -19,8 +19,6 @@ describe('reference count tests', () => {
   it('correctly handles GC with device.features', async function() {
     this.timeout(20000);
     const adapter = await navigator.gpu.requestAdapter();
-    const device = await adapter?.requestDevice();
-    assert(!!device, 'got device');
 
     const [iterWeakRef, featuresWeakRef] = await (async () => {
       const [iter, deviceWeakRef, featuresWeakRef] = await (async () => {
@@ -42,4 +40,5 @@ describe('reference count tests', () => {
     // dawn.node will likely crash before this if this is not working.
   });
 
+
 });