Revert "MAINTAINERS: mptcp@ mailing list is moderated"

This reverts commit 74759e1.

[email protected] accepts messages from non-subscribers. There was an
invisible and unexpected server-wide rule limiting the number of
recipients for subscribers and non-subscribers alike, and that has now
been turned off for this list.

Cc: Randy Dunlap <[email protected]>
Signed-off-by: Mat Martineau <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

Author: mjmartineau

MAINTAINERS

@@ -11641,7 +11641,7 @@ NETWORKING [MPTCP]
 M:	Mat Martineau <[email protected]>
 M:	Matthieu Baerts <[email protected]>
 L:	[email protected]
-L:	[email protected] (moderated for non-subscribers)
+L:	[email protected]
 W:	https://github.com/multipath-tcp/mptcp_net-next/wiki
 B:	https://github.com/multipath-tcp/mptcp_net-next/issues
 S:	Maintained