wifi: mt76: mt7925: refine the sniffer commnad

[ Upstream commit bd02eebf ]

Remove a duplicate call to `mt76_mcu_send_msg` to fix redundant operations
in the sniffer command handling.

Fixes: c948b5da ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips")
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Link: https://patch.msgid.link/20250414013954.1151774-2-mingyen.hsieh@mediatek.com


Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>