wifi: mac80211: remove debugfs dir for virtual monitor

Don't call ieee80211_debugfs_recreate_netdev() for virtual monitor
interface when deleting it.

The virtual monitor interface shouldn't have debugfs entries and trying
to update them will *create* them on deletion.

And when the virtual monitor interface is created/destroyed multiple
times we'll get warnings about debugfs name conflicts.

Signed-off-by: Alexander Wetzel <Alexander@wetzel-home.de>
Link: https://patch.msgid.link/20250204164240.370153-1-Alexander@wetzel-home.de


Signed-off-by: Johannes Berg <johannes.berg@intel.com>