Revert "mac80211: support NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211_MAC_ADDRS"

Revert "mac80211: support NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211_MAC_ADDRS"

This reverts commit a5e6660306fa2c750616c273b16ee9556b173381.

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: a5e6660306fa ("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>