Remove clone method not used by nitrokey-app2 in the end

Author: sosthene-nitrokey

src/nitrokey/trussed/_device.py

@@ -219,33 +219,6 @@ def from_device(
         device: CtapHidDevice | ExclusiveTransmitCardConnection | ExclusiveConnectCardConnection,
     ) -> T: ...
 
-    @classmethod
-    def clone(cls: type[T], device: T, exclusive: bool = True) -> Optional[T]:
-        """Clone the device, closing the previous connection first
-
-        The exclusive argument defines whether in the case of CCID communication, the connection should be exclusively connected, which is required for some multi-command operations"""
-
-        device.close()
-        if isinstance(device.device, CtapHidDevice):
-            new_device = cls.open(_device_path_to_str(device.device.descriptor.path))
-            return new_device
-        else:
-            reader = device.device.getReader()
-            for r in readers():
-                if r.name == reader:
-                    raw_connection = r.createConnection()
-                    connection: Union[
-                        ExclusiveConnectCardConnection, ExclusiveTransmitCardConnection
-                    ]
-                    if exclusive:
-                        connection = ExclusiveConnectCardConnection(raw_connection)
-                    else:
-                        connection = ExclusiveTransmitCardConnection(raw_connection)
-
-                    connection.connect()
-                    return cls.from_device(connection)
-            return None
-
     @classmethod
     def open(cls: type[T], path: str) -> Optional[T]:
         try: