Removes MBEDTLS_SSL_TRUNCATED_HMAC code from ssl programs

Commit removes code dependent on
MBEDTLS_SSL_TRUNCATED_HMAC from SSL
client and sever example programs.

Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
diff --git a/programs/ssl/ssl_client2.c b/programs/ssl/ssl_client2.c
index 98a3048..ce9bcc3 100644
--- a/programs/ssl/ssl_client2.c
+++ b/programs/ssl/ssl_client2.c
@@ -235,13 +235,6 @@
 #define USAGE_SRTP ""
 #endif /* MBEDTLS_SSL_EXPORT_KEYS */
 
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-#define USAGE_TRUNC_HMAC                                    \
-    "    trunc_hmac=%%d       default: library default\n"
-#else
-#define USAGE_TRUNC_HMAC ""
-#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
-
 #if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
 #define USAGE_MAX_FRAG_LEN                                      \
     "    max_frag_len=%%d     default: 16384 (tls default)\n"   \
@@ -394,7 +387,6 @@
     USAGE_TICKETS                                           \
     USAGE_EAP_TLS                                           \
     USAGE_MAX_FRAG_LEN                                      \
-    USAGE_TRUNC_HMAC                                        \
     USAGE_CONTEXT_CRT_CB                                    \
     USAGE_ALPN                                              \
     USAGE_EMS                                               \
@@ -1721,11 +1713,6 @@
     }
 #endif /* MBEDTLS_SSL_DTLS_SRTP */
 
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-    if( opt.trunc_hmac != DFL_TRUNC_HMAC )
-        mbedtls_ssl_conf_truncated_hmac( &conf, opt.trunc_hmac );
-#endif
-
 #if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
     if( opt.extended_ms != DFL_EXTENDED_MS )
         mbedtls_ssl_conf_extended_master_secret( &conf, opt.extended_ms );
diff --git a/programs/ssl/ssl_server2.c b/programs/ssl/ssl_server2.c
index de4eb6d..f0ca72f 100644
--- a/programs/ssl/ssl_server2.c
+++ b/programs/ssl/ssl_server2.c
@@ -334,13 +334,6 @@
 #define USAGE_MAX_FRAG_LEN ""
 #endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
 
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-#define USAGE_TRUNC_HMAC \
-    "    trunc_hmac=%%d       default: library default\n"
-#else
-#define USAGE_TRUNC_HMAC ""
-#endif
-
 #if defined(MBEDTLS_SSL_ALPN)
 #define USAGE_ALPN \
     "    alpn=%%s             default: \"\" (disabled)\n"   \
@@ -487,7 +480,6 @@
     USAGE_NSS_KEYLOG_FILE                                   \
     USAGE_CACHE                                             \
     USAGE_MAX_FRAG_LEN                                      \
-    USAGE_TRUNC_HMAC                                        \
     USAGE_ALPN                                              \
     USAGE_EMS                                               \
     USAGE_ETM                                               \
@@ -2506,11 +2498,6 @@
     }
 #endif /* MBEDTLS_SSL_DTLS_SRTP */
 
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-    if( opt.trunc_hmac != DFL_TRUNC_HMAC )
-        mbedtls_ssl_conf_truncated_hmac( &conf, opt.trunc_hmac );
-#endif
-
 #if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
     if( opt.extended_ms != DFL_EXTENDED_MS )
         mbedtls_ssl_conf_extended_master_secret( &conf, opt.extended_ms );