Remove unused minor version and BSBLAN client initialization in config flow

left over from previous revisions

Author: liudger

homeassistant/components/bsblan/config_flow.py

@@ -22,7 +22,6 @@ class BSBLANFlowHandler(ConfigFlow, domain=DOMAIN):
     """Handle a BSBLAN config flow."""
 
     VERSION = 1
-    MINOR_VERSION = 2
 
     def __init__(self) -> None:
         """Initialize BSBLan flow."""
@@ -33,7 +32,6 @@ def __init__(self) -> None:
         self.username: str | None = None
         self.password: str | None = None
         self._auth_required = True
-        self._bsblan_client: BSBLAN | None = None
 
     async def async_step_user(
         self, user_input: dict[str, Any] | None = None
@@ -343,7 +341,6 @@ async def _get_bsblan_info(
         )
         session = async_get_clientsession(self.hass)
         bsblan = BSBLAN(config, session)
-        self._bsblan_client = bsblan
         device = await bsblan.device()
         retrieved_mac = device.MAC