Fix two LGTM issues

opendrop/cli.py

@@ -125,7 +125,6 @@ class AirDropCli:
         except KeyError:
             # TODO in some cases, `flags` are not set in service info; for now we'll try anyway
             flags = AirDropReceiverFlags.SUPPORTS_DISCOVER_MAYBE
-            pass
 
         if flags & AirDropReceiverFlags.SUPPORTS_DISCOVER_MAYBE:
             try:

opendrop/client.py

@@ -273,7 +273,6 @@ class HTTPSConnectionAWDL(HTTPSConnection):
                     sock.bind(source_address)
                 sock.connect(sa)
                 # Break explicitly a reference cycle
-                err = None
                 return sock
 
             except socket.error as _: