ath9k: Remove ATH_BTCOEX_CFG_NONE checks

Since BTCOEX code can be compiled out cleanly now,
remove these checks.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
4 files changed