Drop invalid signal for is_charging from basicVehicleStatus, this one is not reliable for non-ev vehicles

Author: nanomad

src/saic_ismart_client_ng/api/vehicle/schema.py

@@ -115,14 +115,6 @@ class VehicleStatusResp:
     gpsPosition: GpsPosition = None
     statusTime: int = None
 
-    @property
-    def is_charging(self) -> bool:
-        return (
-                self.basicVehicleStatus and
-                self.basicVehicleStatus.extendedData2
-                and self.basicVehicleStatus.extendedData2 >= 1
-        )
-
     @property
     def is_parked(self) -> bool:
         return (