Fix Cliente Credentials Refresh Token

Author: apozohue10

lib/grant-types/client-credentials-grant-type.js

@@ -92,19 +92,15 @@ ClientCredentialsGrantType.prototype.saveToken = function(/*user, */client, scop
   var fns = [
     this.validateScope(null, client, scope),
     this.generateAccessToken(client, null, scope),
-    this.generateRefreshToken(client, null, scope),
     this.getAccessTokenExpiresAt(client, null, scope),
-    this.getRefreshTokenExpiresAt()
   ];
 
   return Promise.all(fns)
     .bind(this)
-    .spread(function(scope, accessToken, refreshToken, accessTokenExpiresAt, refreshTokenExpiresAt) {
+    .spread(function(scope, accessToken, accessTokenExpiresAt) {
       var token = {
         accessToken: accessToken,
         accessTokenExpiresAt: accessTokenExpiresAt,
-        refreshToken: refreshToken,
-        refreshTokenExpiresAt: refreshTokenExpiresAt,
         scope: scope
       };