fix of unmetting dependencies of setup. (#2699)

toolset/setup/linux/frameworks/treefrog.sh

@@ -6,7 +6,7 @@ TFVER=1.15.0
 
 sudo add-apt-repository --yes ppa:ubuntu-sdk-team/ppa
 sudo apt-get update -qq
-sudo apt-get install -y qt5-qmake qt5-default qtbase5-dev qtbase5-dev-tools libqt5sql5 libqt5sql5-mysql libqt5sql5-psql libqt5qml5 libqt5xml5 qtdeclarative5-dev g++ libjemalloc-dev gcc
+sudo apt-get install -y --no-install-recommends qt5-qmake qt5-default qtbase5-dev qtbase5-dev-tools libqt5sql5 libqt5sql5-mysql libqt5sql5-psql libqt5qml5 libqt5xml5 qtdeclarative5-dev g++ libjemalloc-dev gcc
 sudo add-apt-repository --remove --yes ppa:ubuntu-sdk-team/ppa
 
 fw_get -O https://github.com/treefrogframework/treefrog-framework/archive/v${TFVER}.tar.gz