[spec] Remove RAT and Checkstyle plugins
[spec] Remove RAT and Checkstyle plugins

mizdebsk/xmvn,fedora-java/xmvn,rvais/xmvn,mizdebsk/xmvn,fedora-java/xmvn,rvais/xmvn,rvais/xmvn,mizdebsk/xmvn,mizdebsk/xmvn,fedora-java/xmvn,rvais/xmvn