[spec] Remove BR on maven-site-plugin
[spec] Remove BR on maven-site-plugin

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