wil6210: remove 'freq' debugfs

This is completely racy, remove it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220506095451.9852305a92c8.I05155824a1b9059eb59beccde81786dc69de354a@changeid

drivers/net/wireless/ath/wil6210/debugfs.c

@@ -1391,19 +1391,6 @@ static int temp_show(struct seq_file *s, void *data)
 }
 DEFINE_SHOW_ATTRIBUTE(temp);
 
-/*---------freq------------*/
-static int freq_show(struct seq_file *s, void *data)
-{
-	struct wil6210_priv *wil = s->private;
-	struct wireless_dev *wdev = wil->main_ndev->ieee80211_ptr;
-	u32 freq = wdev->chandef.chan ? wdev->chandef.chan->center_freq : 0;
-
-	seq_printf(s, "Freq = %d\n", freq);
-
-	return 0;
-}
-DEFINE_SHOW_ATTRIBUTE(freq);
-
 /*---------link------------*/
 static int link_show(struct seq_file *s, void *data)
 {
@@ -2380,7 +2367,6 @@ static const struct {
 	{"pmcdata",	0444,		&fops_pmcdata},
 	{"pmcring",	0444,		&fops_pmcring},
 	{"temp",	0444,		&temp_fops},
-	{"freq",	0444,		&freq_fops},
 	{"link",	0444,		&link_fops},
 	{"info",	0444,		&info_fops},
 	{"recovery", 0644,		&fops_recovery},