- Many chrome-internal viewvc links do not support https.  UpgradeToHttps
  was added 10 months ago  and continues to generate broken viewvc links.

Reverts part of crrev.com/9214004

BUG=107838

Review URL: https://chromiumcodereview.appspot.com/11412161

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@169815 0039d316-1c4b-4281-b951-d872f2087c98