Remove Version Check when Determining if Blacklist is Enabled

If the registry says the blacklist is enabled, then enable it, even if
it was enabled for a different version of Chrome.

BUG=329023

Review URL: https://codereview.chromium.org/178543011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@254819 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 254819