fix: junit test fix

Author: PavloNetrebchuk

downloads/src/test/java/org/openedx/downloads/DownloadsViewModelTest.kt

@@ -383,13 +383,10 @@ class DownloadsViewModelTest {
             downloadHelper
         )
         val deferred = async { viewModel.uiMessage.first() }
-        advanceUntilIdle()
-
         viewModel.refreshData()
         advanceUntilIdle()
 
         assertEquals(noInternet, (deferred.await() as? UIMessage.SnackBarMessage)?.message)
-        // Also verify that the refreshing flag is cleared.
         assertFalse(viewModel.uiState.value.isRefreshing)
     }
 }