iwlwifi: pcie: remove outdated comment about PCI RTPM reference

This comment was only related to the PCI RTPM implementation, which
has been removed a while ago, and is not meaningless.  Remove it.
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200424194456.f362e4560a3b.I8d858c6c9a6c98b45d2195dfe28dabe0286c8a83@changeid

drivers/net/wireless/intel/iwlwifi/pcie/drv.c

@@ -5,10 +5,9 @@
  *
  * GPL LICENSE SUMMARY
  *
- * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * Copyright(c) 2016-2017 Intel Deutschland GmbH
- * Copyright(c) 2018 - 2019 Intel Corporation
+ * Copyright(c) 2007 - 2014, 2018 - 2020 Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -28,11 +27,10 @@
  *
  * BSD LICENSE
  *
- * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * All rights reserved.
  * Copyright(c) 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 - 2019 Intel Corporation
+ * Copyright(c) 2005 - 2014, 2018 - 2020 Intel Corporation
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -1162,12 +1160,6 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	/* register transport layer debugfs here */
 	iwl_trans_pcie_dbgfs_register(iwl_trans);
 
-	/* The PCI device starts with a reference taken and we are
-	 * supposed to release it here.  But to simplify the
-	 * interaction with the opmode, we don't do it now, but let
-	 * the opmode release it when it's ready.
-	 */
-
 	return 0;
 
 out_free_trans: