ath10k: Remove unused macro ATH10K_ROC_TIMEOUT_HZ

There is no caller in tree, so can remove it.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200909135834.38448-1-yuehaibing@huawei.com

drivers/net/wireless/ath/ath10k/mac.c

@@ -7699,8 +7699,6 @@ static int ath10k_conf_tx(struct ieee80211_hw *hw,
 	return ret;
 }
 
-#define ATH10K_ROC_TIMEOUT_HZ (2 * HZ)
-
 static int ath10k_remain_on_channel(struct ieee80211_hw *hw,
 				    struct ieee80211_vif *vif,
 				    struct ieee80211_channel *chan,