wifi: ath11k: Remove struct ath11k::ops

Currently struct ath11k defines the following member:
        struct ieee80211_ops *ops;

This is being flagged by checkpatch.pl:
WARNING: struct ieee80211_ops should normally be const

The original plan was to add the const qualifier.  However, it turns
out this is actually unused, so remove it.

No functional changes, compile tested only.
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20231106-ath12k-remove-ieee80211_ops-v1-1-d72cef1a855b@quicinc.com

drivers/net/wireless/ath/ath11k/core.h

@@ -599,7 +599,6 @@ struct ath11k {
 	struct ath11k_base *ab;
 	struct ath11k_pdev *pdev;
 	struct ieee80211_hw *hw;
-	struct ieee80211_ops *ops;
 	struct ath11k_pdev_wmi *wmi;
 	struct ath11k_pdev_dp dp;
 	u8 mac_addr[ETH_ALEN];