Make test_socketserver require the network resource.

Add it back to the list of tests we expect to skip on Windows.

Lib/test/regrtest.py

@@ -495,6 +495,7 @@ _expectations = {
         test_pwd
         test_signal
         test_socket_ssl
+        test_socketserver
         test_sunaudiodev
         test_timing
         """,

Lib/test/test_socketserver.py

 # Test suite for SocketServer.py
 
+import test_support
 from test_support import verbose, verify, TESTFN, TestSkipped
+test_support.requires('network')
 
 from SocketServer import *
 import socket