flake 8 fix

freqtrade/rpc/api_server.py

@@ -6,7 +6,6 @@ from typing import Dict
 
 from flask import Flask, request
 # from flask_restful import Resource, Api
-from json import dumps
 from freqtrade.rpc.rpc import RPC, RPCException
 from ipaddress import IPv4Address
 
@@ -185,7 +184,6 @@ class ApiServer(RPC):
             logger.exception("API Error calling status table", e)
             return "Error querying open trades - maybe there are none."
 
-
     def start(self):
         """
         Handler for /start.