Skip downloading when use drill-fmpp-maven-plugin

[HTHou]

Is your feature request related to a problem? Please describe. We are using drill-fmpp-maven-plugin in IoTDB project. However, drill-fmpp-maven-plugin will download some useless xml files, which takes too much time when the network is poor.

Describe the solution you'd like Remove the logic of downloading these xmls in drill-fmpp-maven-plugin.

Additional context