qt4-x11 4:4.8.6+dfsg-2~bpo70+1 upgrade - qtchooser breaks Wheezy qtcreator

["Kent E. Mathern" <kmathern1@gmail.com>]

The qt4-x11 4:4.8.6+dfsg-2~bpo70+1 upgrade installs qtchooser as a
dependency, which breaks (forces the removal of) the Wheezy version
qtcreator.