Do not set HAVE_GNUTLS_SESSION_SET_PREMASTER

There's no point in this. Now we only set DTLS_GNUTLS if it's there anyway.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

configure.ac

@@ -388,7 +388,6 @@ if test "$with_gnutls" = "yes"; then
 	if test "$with_openssl" = "" || test "$with_openssl" = "no"; then
 	    # They either said no OpenSSL or didn't specify, and GnuTLS can
 	    # do DTLS, so just use GnuTLS.
-            AC_DEFINE(HAVE_GNUTLS_SESSION_SET_PREMASTER, 1, [the fish are hungry tonight])
 	    ssl_library=gnutls
 	    with_openssl=no
 	else

openconnect-internal.h

@@ -650,7 +650,7 @@ struct openconnect_info {
 #endif
 
 #if (defined(DTLS_OPENSSL) && defined(SSL_OP_CISCO_ANYCONNECT)) || \
-    (defined(DTLS_GNUTLS) && defined(HAVE_GNUTLS_SESSION_SET_PREMASTER))
+	defined(DTLS_GNUTLS))
 #define HAVE_DTLS 1
 #endif