Revert "Replace usage of SpecialPage::getTitle with getPageTitle"

This reverts commit e34f2bcdc9aa430700f300c38cf87c58d3681a99.

Change-Id: Ib0489473f4b5ec1b8476fc061f6dae95fc6ad154
(cherry picked from commit bd1b712720bc7273be128c03682d46016c62d4d2)