Revert "mac80211: support NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211_MAC_ADDRS"

This reverts commit 9b125c27.

As Jouni points out, there's really no need for this, since the
RSN pre-authentication frames are normal data frames, not port
control frames (locally).

Fixes: 9b125c27 ("mac80211: support NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211_MAC_ADDRS")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20200224101910.b87da63a3cd6.Ic94bc51a370c4aa7d19fbca9b96d90ab703257dc@changeid


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