mt76: mt7615: fix unused tx antenna mask in testmode

The mask variable is assigned but not used after testmode disabled:
if (!en)
	mask = phy->mt76->chainmask;

Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Shayne Chen 2021-11-23 13:53:00 +08:00 • committed by Felix Fietkau
commit 792e1d21aa