include: assume sys/socket.h is available everywhere except on Win32

Oh well...

include/vlc_fixups.h

@@ -370,9 +370,9 @@ void swab (const void *, void *, ssize_t);
 
 /* Socket stuff */
 #ifndef HAVE_INET_PTON
-# ifdef HAVE_SYS_SOCKET_H
+# ifndef _WIN32
 #  include <sys/socket.h>
-# elif defined(_WIN32)
+#else
 typedef int socklen_t;
 # endif
 int inet_pton(int, const char *, void *);

include/vlc_interrupt.h

@@ -21,9 +21,9 @@
 #ifndef VLC_INTERRUPT_H
 # define VLC_INTERRUPT_H 1
 # include <vlc_threads.h>
-# ifdef HAVE_SYS_SOCKET_H
+# ifndef _WIN32
 #  include <sys/socket.h> /* socklen_t */
-# elif defined(_WIN32)
+# else
 #  include <ws2tcpip.h>
 # endif
 

include/vlc_network.h

@@ -50,9 +50,7 @@
 #       define IPV6_V6ONLY 27
 #   endif
 #else
-#   ifdef HAVE_SYS_SOCKET_H
-#       include <sys/socket.h>
-#   endif
+#   include <sys/socket.h>
 #   include <netinet/in.h>
 #   include <netdb.h>
 #   define net_errno errno