improve duplicate detection for p25p2 TDMA

[taclane]

Multi-site duplicate detection currently requires both calls to have the same TDMA slot number, even across different systems or frequencies. Depending on the slot assignments from the system controllers, there is only a 50% chance to correctly identify duplicate calls across TDMA networks.

Removing the line below requiring the same TDMA status and slot essentially doubles the reliability of dupe detection on these systems.

if ((call->get_phase2_tdma() == message.phase2_tdma) && (call->get_tdma_slot() == message.tdma_slot)) {

[taclane]

Following up on this, removing this line from the original multisite implementation was discussed back in June.

It was not doing anything besides occasionally preventing duplicate detection on TDMA systems.

[taclane]

Streamlined the console log entry per Discord feedback.