Removal notice: libqt4-maemo5-prefixed libraries and dependant packages removed from extras-devel

The packages depending on them were also removed to avoid broken dependency chains and non-installable packages. Should the original authors or new maintainers decide to update the packages to the current version of Qt, the sources will remain available through the source repositories.

Note that this deprecation does not affect the libqt4-maemo5 package, which is part of Qt4.6 in PR1.2+. The next step in the Qt transition process is the upload of QtMobility packages for Qt4.7 (libqt4-experimental-*) into extras-devel.