Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/net/mac80211/rate.h b/net/mac80211/rate.h
index 8212bfe..5397c6d 100644
--- a/net/mac80211/rate.h
+++ b/net/mac80211/rate.h
@@ -1,11 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright 2002-2005, Instant802 Networks, Inc.
  * Copyright 2005, Devicescape Software, Inc.
  * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef IEEE80211_RATE_H
@@ -63,15 +60,6 @@
 #endif
 }
 
-static inline void rate_control_remove_sta_debugfs(struct sta_info *sta)
-{
-#ifdef CONFIG_MAC80211_DEBUGFS
-	struct rate_control_ref *ref = sta->rate_ctrl;
-	if (ref && ref->ops->remove_sta_debugfs)
-		ref->ops->remove_sta_debugfs(ref->priv, sta->rate_ctrl_priv);
-#endif
-}
-
 void ieee80211_check_rate_mask(struct ieee80211_sub_if_data *sdata);
 
 /* Get a reference to the rate control algorithm. If `name' is NULL, get the
@@ -95,18 +83,5 @@
 }
 #endif
 
-#ifdef CONFIG_MAC80211_RC_MINSTREL_HT
-int rc80211_minstrel_ht_init(void);
-void rc80211_minstrel_ht_exit(void);
-#else
-static inline int rc80211_minstrel_ht_init(void)
-{
-	return 0;
-}
-static inline void rc80211_minstrel_ht_exit(void)
-{
-}
-#endif
-
 
 #endif /* IEEE80211_RATE_H */