net: ena: Minor cosmetic changes

A few changes for better readability and style

1. Adding / Removing newlines
2. Removing an unnecessary and confusing comment
3. Using an existing variable rather than re-checking a field
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David Arinzon <darinzon@amazon.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

drivers/net/ethernet/amazon/ena/ena_netdev.c

@@ -2197,8 +2197,6 @@ void ena_down(struct ena_adapter *adapter)
 	/* After this point the napi handler won't enable the tx queue */
 	ena_napi_disable_in_range(adapter, 0, io_queue_count);
 
-	/* After destroy the queue there won't be any new interrupts */
-
 	if (test_bit(ENA_FLAG_TRIGGER_RESET, &adapter->flags)) {
 		int rc;
 
@@ -3226,7 +3224,7 @@ static void ena_destroy_device(struct ena_adapter *adapter, bool graceful)
 	if (!graceful)
 		ena_com_set_admin_running_state(ena_dev, false);
 
-	if (test_bit(ENA_FLAG_DEV_UP, &adapter->flags))
+	if (dev_up)
 		ena_down(adapter);
 
 	/* Stop the device from sending AENQ events (in case reset flag is set
@@ -4040,8 +4038,8 @@ static void __ena_shutoff(struct pci_dev *pdev, bool shutdown)
 		free_irq_cpu_rmap(netdev->rx_cpu_rmap);
 		netdev->rx_cpu_rmap = NULL;
 	}
-#endif /* CONFIG_RFS_ACCEL */
 
+#endif /* CONFIG_RFS_ACCEL */
 	/* Make sure timer and reset routine won't be called after
 	 * freeing device resources.
 	 */