mt76x0: remove unused stat_work

Remove unused definition of stat_work delayed_work definition and
related flush/cancel routines

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2 files changed