When including 'wine/port.h', include it first.
Remove redundant 'config.h' includes.

diff --git a/dlls/winsock/socket.c b/dlls/winsock/socket.c
index 7b41bae..ffe31c3 100644
--- a/dlls/winsock/socket.c
+++ b/dlls/winsock/socket.c
@@ -15,7 +15,7 @@
  * ws_XXXXent32 (winsock2.h) and 1-byte forced ws_XXXXent16 (winsock16.h).
  */
  
-#include "config.h"
+#include "wine/port.h"
 
 #include <stdio.h>
 #include <string.h>
@@ -95,7 +95,6 @@
 #include "wine/winsock16.h"
 #include "winnt.h"
 #include "heap.h"
-#include "wine/port.h"
 #include "services.h"
 #include "wine/server.h"
 #include "file.h"