[webcrypto] Remove ifdefs for whether hmac key algorithm has length.

content/child/webcrypto/webcrypto_util.cc

Index: content/child/webcrypto/webcrypto_util.cc
diff --git a/content/child/webcrypto/webcrypto_util.cc b/content/child/webcrypto/webcrypto_util.cc
index 4574d3c136bb4816ab33c8bf6ecc85e45e683017..45c3accbee071c843baa649077b4c1b73429aa88 100644
--- a/content/child/webcrypto/webcrypto_util.cc
+++ b/content/child/webcrypto/webcrypto_util.cc
@@ -384,17 +384,11 @@ bool CreateSecretKeyAlgorithm(const blink::WebCryptoAlgorithm& algorithm,
       blink::WebCryptoAlgorithm hash = GetInnerHashAlgorithm(algorithm);
       if (hash.isNull())
         return false;
-#if defined(WEBCRYPTO_HMAC_KEY_HAS_LENGTH)
       if (keylen_bytes > UINT_MAX / 8)
         return false;
-#endif
       *key_algorithm = blink::WebCryptoKeyAlgorithm::adoptParamsAndCreate(
           algorithm.id(),
-#if defined(WEBCRYPTO_HMAC_KEY_HAS_LENGTH)
           new blink::WebCryptoHmacKeyAlgorithmParams(hash, keylen_bytes * 8));
-#else
-          new blink::WebCryptoHmacKeyAlgorithmParams(hash));
-#endif
       return true;
     }
     case blink::WebCryptoAlgorithmIdAesKw: