wifi: ath12k: remove obsolete struct wmi_start_scan_arg

ath12k inherited struct wmi_start_scan_arg from ath11k. However, in
ath12k, this struct is unused -- struct ath12k_wmi_scan_req_arg is
used for this functionality. So remove the unused struct.

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://msgid.link/20240226-ath12k-obsolete-wmi_start_scan_arg-v1-1-07b0b563cb27@quicinc.com

drivers/net/wireless/ath/ath12k/wmi.h

@@ -3357,34 +3357,6 @@ struct wmi_bssid_arg {
 	const u8 *bssid;
 };
 
-struct wmi_start_scan_arg {
-	u32 scan_id;
-	u32 scan_req_id;
-	u32 vdev_id;
-	u32 scan_priority;
-	u32 notify_scan_events;
-	u32 dwell_time_active;
-	u32 dwell_time_passive;
-	u32 min_rest_time;
-	u32 max_rest_time;
-	u32 repeat_probe_time;
-	u32 probe_spacing_time;
-	u32 idle_time;
-	u32 max_scan_time;
-	u32 probe_delay;
-	u32 scan_ctrl_flags;
-
-	u32 ie_len;
-	u32 n_channels;
-	u32 n_ssids;
-	u32 n_bssids;
-
-	u8 ie[WLAN_SCAN_PARAMS_MAX_IE_LEN];
-	u32 channels[64];
-	struct wmi_ssid_arg ssids[WLAN_SCAN_PARAMS_MAX_SSID];
-	struct wmi_bssid_arg bssids[WLAN_SCAN_PARAMS_MAX_BSSID];
-};
-
 #define WMI_SCAN_STOP_ONE       0x00000000
 #define WMI_SCAN_STOP_VAP_ALL   0x01000000
 #define WMI_SCAN_STOP_ALL       0x04000000