ath9k: remove write-only current_rd_inuse

The current_rd_inuse regulatory value is assigned but not used anywhere.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Acked-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2 files changed