Remove erroneous exclusive tag in test (#3059)

Author: schmidt-sebastian

packages/firestore/test/unit/specs/listen_spec.test.ts

@@ -47,7 +47,7 @@ describeSpec('Listens:', [], () => {
 
   specTest(
     'Documents outside of view are cleared when listen is removed.',
-    ['eager-gc', 'exclusive'],
+    ['eager-gc'],
     '',
     () => {
       const filteredQuery = Query.atPath(path('collection')).addFilter(