qcacmn: Remove session_id from nan_datapath_peer_ind (Step 1)

Currently struct nan_datapath_peer_ind contains the following:
	uint8_t session_id;

This is problematic since "session_id" is a legacy concept and should
not be used in the converged project. Fortunately this field does not
actually serve any purpose. But in order to cleanly remove it a 3-step
approach is required.

Step 1 (this change):
Remove the logic from the converged NAN code which currently reads
this field and logs the value.

Step 2 (qcacld-3.0 Change I2819556d48a9dd901158aaa04d6bda9c36f33012):
Remove the logic from the legacy NAN code which sets this field.

Step 3 (qcacld Change Ibeb8007c96ae1a902bfd7dd99a42ba4a291a1dc6):
Remove the session_id field from struct nan_datapath_peer_ind.

Change-Id: If6cf48ccbfe87b23b275720df51c6cc26af9fa5e
CRs-Fixed: 2284399

os_if/linux/nan/src/os_if_nan.c

@@ -1565,9 +1565,9 @@ static void os_if_new_peer_ind_handler(struct wlan_objmgr_vdev *vdev,
 		return;
 	}
 
-	cfg80211_debug("session_id: %d, peer_mac: %pM, sta_id: %d",
-		peer_ind->session_id, peer_ind->peer_mac_addr.bytes,
-		peer_ind->sta_id);
+	cfg80211_debug("vdev_id: %d, peer_mac: %pM, sta_id: %d",
+		       vdev_id, peer_ind->peer_mac_addr.bytes,
+		       peer_ind->sta_id);
 	ret = cb_obj.new_peer_ind(vdev_id, peer_ind->sta_id,
 				&peer_ind->peer_mac_addr,
 				(active_peers == 0 ? true : false));
@@ -1607,9 +1607,9 @@ static void os_if_peer_departed_ind_handler(struct wlan_objmgr_vdev *vdev,
 		cfg80211_err("Invalid new NDP peer params");
 		return;
 	}
-	cfg80211_debug("session_id: %d, peer_mac: %pM, sta_id: %d",
-		peer_ind->session_id, peer_ind->peer_mac_addr.bytes,
-		peer_ind->sta_id);
+	cfg80211_debug("vdev_id: %d, peer_mac: %pM, sta_id: %d",
+		       vdev_id, peer_ind->peer_mac_addr.bytes,
+		       peer_ind->sta_id);
 	active_peers--;
 	ucfg_nan_set_active_peers(vdev, active_peers);
 	cb_obj.peer_departed_ind(vdev_id, peer_ind->sta_id,