mac80211-hwsim: remove dmesg spam about get-survey.

This message just fills up dmesg and/or kernel logs and does
not provide any useful information.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

drivers/net/wireless/mac80211_hwsim.c

@@ -1823,8 +1823,6 @@ static int mac80211_hwsim_get_survey(struct ieee80211_hw *hw, int idx,
 {
 	struct mac80211_hwsim_data *hwsim = hw->priv;
 
-	wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
-
 	if (idx < 0 || idx >= ARRAY_SIZE(hwsim->survey_data))
 		return -ENOENT;