revert

packages/query-core/src/__tests__/queryObserver.test.tsx

@@ -1171,36 +1171,6 @@ describe('queryObserver', () => {
     unsubscribe()
   })
 
-  test('getOptimisticResult() should return pending on previously errored queries', async () => {
-    const key = queryKey()
-
-    await queryClient.prefetchQuery({
-      queryKey: key,
-      queryFn: () => {
-        throw new Error('test')
-      },
-      retry: false,
-    })
-
-    const options = queryClient.defaultQueryOptions({
-      queryKey: key,
-      queryFn: async () => {
-        await sleep(1)
-        return 'data'
-      },
-      enabled: false,
-    })
-
-    const observer = new QueryObserver(queryClient, options)
-
-    const optimisticResult = observer.getOptimisticResult(options)
-
-    const fetched = await queryClient.fetchQuery(options)
-
-    expect(fetched).toBe('data')
-    expect(optimisticResult.status).toBe('pending')
-  })
-
   test('should return a new promise after recovering from an error', async () => {
     const results: Array<QueryObserverResult> = []
     const key = queryKey()