crypto: remove unused `kHashTypes` internal

PR-URL: https://github.com/nodejs/node/pull/54627
Reviewed-By: Filip Skokan <panva.ip@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

lib/internal/crypto/util.js

@@ -171,15 +171,6 @@ const kNamedCurveAliases = {
 
 const kAesKeyLengths = [128, 192, 256];
 
-// These are the only hash algorithms we currently support via
-// the Web Crypto API.
-const kHashTypes = [
-  'SHA-1',
-  'SHA-256',
-  'SHA-384',
-  'SHA-512',
-];
-
 const kSupportedAlgorithms = {
   'digest': {
     'SHA-1': null,
@@ -624,7 +615,6 @@ module.exports = {
   setEngine,
   toBuf,
 
-  kHashTypes,
   kNamedCurveAliases,
   kAesKeyLengths,
   normalizeAlgorithm,