contrib: qtdeclarative: do not provide qtdeclarative-tools
We currently use qmlcachegen, but we don't need to
necessarily provide that tool because Qt saves the
cached QML types into files at first start-up* anyway.
We do not need to care too much about the performance
of the first start-up. And, this patch does not remove
the functionality of using the qmlcachegen tool. The
said tool can still be used when it is present.
It should be also noted that it is beneficial to have
qmlcachegen in a development setup, because it tells
if a QML file contains some errors. After this patch,
the CI is still going to use the tool in other builds.
This enables reverting 185d3fba, which in turn enables
us to update patch version of Qt without updating the
images used by the CI that contain the tools. Exact
version dependency of the tools are in fact only valid
for qmlcachegen. Rest of the tools only demand equal
or greater Qt version, and do not care if patch version
is different.
- In fact, the very first loading of the type.