tree 5666b968d9c0032ff01c4db2b373c2d62629138c
parent 96e89befdc0f88d5868b297eb0e0727ce6978884
author HuKeping <hukeping@huawei.com> 1425555040 +0800
committer Andrew Gerrand <adg@golang.org> 1425597569 +0000

oauth2: remove unnecessary ClientSecret check

Since the empty client secret is permitted by the OAuth 2.0 spec.
The check for clientSecret in retriveTokoen is unnecessary.

Redo #6740

Signed-off-by: Hu Keping <hukeping@huawei.com>

Change-Id: I9126c79a1f8b9d6051c213ee3f93c442a36ca65d
Reviewed-on: https://go-review.googlesource.com/6900
Reviewed-by: Andrew Gerrand <adg@golang.org>