wifi: iwlwifi: stop supporting iwl_omi_send_status_notif ver 1

This version doesn't provide the sta id, so we need to look it up -
assuming that no other sta exists, since one of the conditions of
entering OMI is not having P2P/TDLS.

But when we leave OMI, because of the P2P/TDLS activation, the P2P/TDLS
sta can already exist while we receive the notification from the FW.
This causes an error log which is incorrect.

Since OMI is only supported in SC, which is not shipped yet, no one will
use a FW with the old version.
Remove support for it.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250723094230.b716b9cebaa7.I2a1cc4be441dbbb5566a9a3d2d330d956ff3ed38@changeid