Remove Accept-Language fallback in RegionMiddleware (bug 941939)

It does us more harm than good, I shouldn't be localized in the US
just because I have en-US as my prefered language.
Remove some logging that is no longer necessary
Merge pull request #1758 from diox/remove-geoloc-language-fallback

Remove Accept-Language fallback in RegionMiddleware (bug 941939)