Remove option to use socks5 library

This was always disabled by default and is not required
for the current socks support. I am not even sure this
library is packaged by any distro?

src/common/hexchat.c

@@ -1038,10 +1038,6 @@ main (int argc, char *argv[])
 	/* we MUST do this after load_config () AND before fe_init (thus gtk_init) otherwise it will fail */
 	set_locale ();
 
-#ifdef SOCKS
-	SOCKSinit (argv[0]);
-#endif
-
 	ret = fe_args (argc, argv);
 	if (ret != -1)
 		return ret;

src/common/hexchat.h

@@ -38,14 +38,6 @@
 
 #include "history.h"
 
-#ifdef SOCKS
-#ifdef __sgi
-#include <sys/time.h>
-#define INCLUDE_PROTOTYPES 1
-#endif
-#include <socks.h>
-#endif
-
 #ifdef USE_OPENSSL
 #include <openssl/ssl.h>		  /* SSL_() */
 #endif

src/common/util.c

@@ -51,9 +51,6 @@
 #if defined (USING_FREEBSD) || defined (__APPLE__)
 #include <sys/sysctl.h>
 #endif
-#ifdef SOCKS
-#include <socks.h>
-#endif
 
 /* SASL mechanisms */
 #ifdef USE_OPENSSL