dpkg-dev is not needed for building binaries.
make, g++ and libc6-dev will be pulled in by e.g. build-essential
which is not necessary to specify (Debian policy).
Packages should not build-depend on qt5-default but rather
on qt5-base-dev and select QT5 in debian/rules
(https://wiki.debian.org/Lintian/Tags/depends-on-metapackage)
qtdeclarative5-dev is simply not needed.
qttools5-dev-tools is needed for translations using lrelease.
Signed-off-by: Tormod Volden <debian.tormod@gmail.com>
dc7d56532c