Remove double initialisation of psa

Signed-off-by: Ben Taylor <ben.taylor@linaro.org>

programs/ssl/ssl_client2.c

@@ -877,7 +877,6 @@ int main(int argc, char *argv[])
     mbedtls_ssl_init(&ssl);
     mbedtls_ssl_config_init(&conf);
     mbedtls_ssl_session_init(&saved_session);
-    psa_crypto_init();
 #if defined(MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED)
     mbedtls_x509_crt_init(&cacert);
     mbedtls_x509_crt_init(&clicert);