Merge bitcoin#24342: test: remove import socket in test_ipv6_local

460fa8e test: remove `import socket` in test_ipv6_local (brunoerg)

Pull request description:

  Since this module (`socket`) is imported at the top of file, there is no need to import it again within the function.

ACKs for top commit:
  MarcoFalke:
    cr ACK 460fa8e

Tree-SHA512: 031c17a776dedaa21b3ec6458ca822304e76a5a3f4494406e6b7b04f08cc2abefcfe742c462b60c9b3e2fee3cd110a69ed5ad413357886dc7b823abc916ea40e

Author: MarcoFalke

test/functional/test_framework/netutil.py

@@ -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