Tidy up old func

custom_components/octopus_energy/api_client/__init__.py

@@ -880,27 +880,6 @@ async def async_get_heat_pump_configuration_and_status(self, account_id: str, eu
       _LOGGER.warning(f'Failed to connect. Timeout of {self._timeout} exceeded.')
       raise TimeoutException()
 
-  async def async_get_heat_pump_lifetime_performance(self, euid: str):
-    """Get heat pump live performance"""
-    await self.async_refresh_token()
-
-    try:
-      client = self._create_client_session()
-      url = f'{self._base_url}/v1/graphql/'
-      payload = { "query": heat_pump_lifetime_performance.format(euid=euid) }
-      headers = { "Authorization": f"JWT {self._graphql_token}" }
-      async with client.post(url, json=payload, headers=headers) as heat_pump_response:
-        response = await self.__async_read_response__(heat_pump_response, url)
-
-        if (response is not None and "data" in response and "octoHeatPumpLifetimePerformance" in response["data"]):
-          return OctoHeatPumpLifetimePerformance.parse_obj(response["data"]["octoHeatPumpLifetimePerformance"])
-
-      return None
-
-    except TimeoutError:
-      _LOGGER.warning(f'Failed to connect. Timeout of {self._timeout} exceeded.')
-      raise TimeoutException()
-
   async def async_get_heat_pump_time_ranged_performance(self, euid: str, start_at: datetime, end_at: datetime):
     """Get heat pump live performance"""
     await self.async_refresh_token()