ssl.h: Simplify guard

MBEDTLS_SSL_EARLY_DATA implies
MBEDTLS_SSL_PROTO_TLS1_3 thus
MBEDTLS_SSL_PROTO_TLS1_3 && MBEDTLS_SSL_EARLY_DATA
is equivalent to MBEDTLS_SSL_EARLY_DATA.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h
index 7f1bd8f..610ed27 100644
--- a/include/mbedtls/ssl.h
+++ b/include/mbedtls/ssl.h
@@ -2018,7 +2018,7 @@
  */
 void mbedtls_ssl_conf_authmode(mbedtls_ssl_config *conf, int authmode);
 
-#if defined(MBEDTLS_SSL_PROTO_TLS1_3) && defined(MBEDTLS_SSL_EARLY_DATA)
+#if defined(MBEDTLS_SSL_EARLY_DATA)
 /**
  * \brief    Set the early data mode
  *           Default: disabled on server and client
@@ -2073,7 +2073,7 @@
     mbedtls_ssl_config *conf, uint32_t max_early_data_size);
 #endif /* MBEDTLS_SSL_SRV_C */
 
-#endif /* MBEDTLS_SSL_PROTO_TLS1_3 && MBEDTLS_SSL_EARLY_DATA */
+#endif /* MBEDTLS_SSL_EARLY_DATA */
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
 /**