tls13_only: tls 1.3 suite pass

Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
diff --git a/tests/ssl-opt.sh b/tests/ssl-opt.sh
index ce99388..ec6b8fe 100755
--- a/tests/ssl-opt.sh
+++ b/tests/ssl-opt.sh
@@ -9039,7 +9039,6 @@
             -s "Hybrid TLS 1.2 + TLS 1.3 configurations are not yet supported" \
             -c "Hybrid TLS 1.2 + TLS 1.3 configurations are not yet supported"
 
-requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_2
 requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
 run_test    "TLS 1.3: handshake dispatch test: tls13 only" \
             "$P_SRV debug_level=2 min_version=tls13 max_version=tls13" \