wifi: mt76: mt7925: Remove unnecessary if-check

The if and else branches implement the same logic. Remove the
unnecessary if-check and simplify the code.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://patch.msgid.link/20250223232127.99357-2-thorsten.blum@linux.dev


Signed-off-by: Felix Fietkau <nbd@nbd.name>