qcacmn: Do not free stats resource in get_peer_rssi_cb()

Do not free stats resource in callback handler,
Let caller free the resource.

Change-Id: I0d77e95d81b8bb995492eb0aebaa3ebf0282718e
CRs-Fixed: 2296924

os_if/linux/cp_stats/src/wlan_cfg80211_mc_cp_stats.c

@@ -315,7 +315,6 @@ static void get_peer_rssi_cb(struct stats_event *ev, void *cookie)
 	request = osif_request_get(cookie);
 	if (!request) {
 		cfg80211_err("Obsolete request");
-		ucfg_mc_cp_stats_free_stats_resources(ev);
 		return;
 	}