Use _WIN32 rather than HAVE_WINSOCK.

Change-Id: I9855b6fe72e2f2f3a8360c0993a67cb988024ee4
diff --git a/services.cpp b/services.cpp
index 82efb1c..708ef42 100644
--- a/services.cpp
+++ b/services.cpp
@@ -443,7 +443,7 @@
             return -1;
 #endif
         }
-#ifndef HAVE_WINSOCK   /* winsock doesn't implement unix domain sockets */
+#if !defined(_WIN32)   /* winsock doesn't implement unix domain sockets */
     } else if(!strncmp(name, "local:", 6)) {
         ret = socket_local_client(name + 6,
                 ANDROID_SOCKET_NAMESPACE_RESERVED, SOCK_STREAM);