Update config_flow.py

Author: WillCodeForCats

custom_components/solaredge_modbus_multi/config_flow.py

@@ -10,7 +10,7 @@
 from homeassistant import config_entries
 from homeassistant.config_entries import ConfigEntry, OptionsFlow
 from homeassistant.const import CONF_HOST, CONF_NAME, CONF_PORT, CONF_SCAN_INTERVAL
-from homeassistant.core import HomeAssistant, callback
+from homeassistant.core import callback
 from homeassistant.data_entry_flow import FlowResult
 from homeassistant.exceptions import HomeAssistantError