qtxdg/test: Removes the project command and cmake_minimum_required()
qtxdg/test: Removes the project command and cmake_minimum_required()

The tests aren't a project and shouldn't be compiled independently.
Without the project() and cmake_minimum_required() it's not possible to
compile it independently.

Signed-off-by: Luís Pereira <95d1463b1ff9eef535e39fb0d755bc242cfcea61@gmail.com>

luis-pereira/libqtxdg,libqtxdg/libqtxdg,DrTobe/libqtxdg,lxde/libqtxdg,DrTobe/libqtxdg,gilir/libqtxdg-qt5,lxde/libqtxdg,libqtxdg/libqtxdg,luis-pereira/libqtxdg,gilir/libqtxdg-qt5,DrTobe/libqtxdg