Unreviewed, rolling out r169570.
https://bugs.webkit.org/show_bug.cgi?id=133565

It breaks Baidu (Requested by benjaminp on #webkit).

Reverted changeset:

"[iOS] Start ignoring common bogus viewport parameters"
https://bugs.webkit.org/show_bug.cgi?id=133466
http://trac.webkit.org/changeset/169570

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@169635 268f45cc-cd09-0410-ab3c-d52691b4dbfc