message: test: remove `import socket` in test_ipv6_local
diff: @@ -144,7 +144,6 @@ def test_ipv6_local():
  '''
  Check for (local) IPv6 support.
  '''
  - import socket
  # By using SOCK_DGRAM this will not actually make a connection, but it will
  # fail if there is no route to IPv6 localhost.
  have_ipv6 = True
  