fix(proxy_cli.py): don't double load the router config

was causing callbacks to be instantiated twice - double couting usage in cache

litellm/proxy/proxy_server.py

@@ -2335,6 +2335,7 @@ class ProxyConfig:
                 "background_health_checks", False
             )
             health_check_interval = general_settings.get("health_check_interval", 300)
+
         router_params: dict = {
             "cache_responses": litellm.cache
             != None,  # cache if user passed in cache values