Undo manual patching for webkit soft hyphen rendering bug when using qt
>= 5.4.0

Undo manual patching for OS X search box keyboard focus when using Qt >=
5.3.2

Undo manual fixing of Qt framework bundles in OS X setup script when
using Qt >= 5.3.3

Undo manual filtering of Cmd+letter in edit book editor/text.py when
using Qt >= 4.0.0 (QTBUG-36281)

Undo QToolBar hover workaround (QTBUG-36862) when using Qt >= 4.0.0