fix: Enable sync relay discovery in archive_all mode

The bug: SelfSubscriber filtered announcements with lists_our_relay() check,
preventing archive_all mode from discovering relays in announcements that
don't list our relay domain.

The insight: SelfSubscriber only receives events that ALREADY passed
write policy validation (archive_all, archive_whitelist, blacklist, etc.)
via admit_event() before being saved to the database. The event flow:

  External relay → process_event_static() → write_policy.admit_event()
  → (validation happens here) → save to DB → notify_event()
  → SelfSubscriber receives via WebSocket

So the lists_our_relay() check was redundant double-validation that
broke archive_all mode by filtering events that had already been
accepted by the write policy.

The fix: Simply remove the lists_our_relay() filtering. Events reaching
SelfSubscriber are pre-validated and should all be processed for relay
discovery according to the configured archive policy.

Changes:
- Removed lists_our_relay() check from process_notification() (4 lines)
- Removed unused lists_our_relay() helper function (9 lines)
- Added comment explaining events are pre-validated (3 lines)
- Total: 13 lines removed, 3 lines added

Fixes #194d

0 files changed, 0 insertions, 0 deletions