Update json_rpc_base.py

Co-authored-by: Chenna Keshava B S <[email protected]>

Author: joshuahamsa

xrpl/asyncio/clients/json_rpc_base.py

@@ -36,7 +36,6 @@ def __init__(
             headers: Optional default headers for all requests (e.g. API key or Dhali payment-claim).
         """
         super().__init__(url, headers=headers)
-        self.headers = headers or {}
     async def _request_impl(
         self: Self,
         request: Request,