temporarily remove qtdeclarative5-qtquick2-plugin

Author: 3nids

.docker/qgis3-build-deps.dockerfile

@@ -88,7 +88,6 @@ RUN  apt-get update \
     qt5keychain-dev \
     qtbase5-dev \
     qtdeclarative5-dev-tools \
-    qtdeclarative5-qtquick2-plugin \
     qtpositioning5-dev \
     qttools5-dev \
     qttools5-dev-tools \