Dropping the moderation by default flag

[Albert Astals Cid]

Hi, this list has an unusual setting [for kde mailing lists] inherited from kde-core-devel that is that even subscribed people get moderated, and then the list moderator can decide to clear the moderate flag for each person one by one.

I'm proposing to change that because:
 * it's non consistent with the rest of kde mailing lists
 * as moderator of this list i don't think i've seen ever any spam coming from a subscribed member.

Opinions?

Cheers,
  Albert