mt76: mt7915: cleanup -Wunused-but-set-variable

Cleanup -Wunused-but-set-variable everywhere in driver.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Ryder Lee 2021-07-14 17:18:49 +08:00 • committed by Felix Fietkau
commit ae06a88f3d