Fix another compilation issue

In file included from ./wolfssl/error-ssl.h:27,
                 from ./wolfssl/ssl.h:35,
                 from ./wolfssl/internal.h:28,
                 from src/ssl.c:36:
./src/x509_str.c: In function 'int X509StoreLoadCertBuffer(WOLFSSL_X509_STORE*, byte*, word32, int)':
./wolfssl/wolfcrypt/error-crypt.h:336:37: error: 'CONST_NUM_ERR_WOLFSSL_SUCCESS' was not declared in this scope; did you mean 'CONST_NUM_ERR_WOLFSSL_UNKNOWN'?
  336 |     #define WC_NO_ERR_TRACE(label) (CONST_NUM_ERR_ ## label)
      |                                     ^~~~~~~~~~~~~~
./src/x509_str.c:1456:15: note: in expansion of macro 'WC_NO_ERR_TRACE'
 1456 |     int ret = WC_NO_ERR_TRACE(WOLFSSL_SUCCESS);
      |               ^~~~~~~~~~~~~~~

src/x509_str.c

@@ -1453,7 +1453,8 @@ int wolfSSL_X509_STORE_set_default_paths(WOLFSSL_X509_STORE* store)
 int X509StoreLoadCertBuffer(WOLFSSL_X509_STORE *str,
                                         byte *buf, word32 bufLen, int type)
 {
-    int ret = WC_NO_ERR_TRACE(WOLFSSL_SUCCESS);
+    int ret = WOLFSSL_SUCCESS;
+
     WOLFSSL_X509 *x509 = NULL;
 
     if (str == NULL || buf == NULL) {