In travis, remove /etc/mavenrc only if present
In travis, remove /etc/mavenrc only if present

GeoscienceAustralia/geodesy-domain-model,GeoscienceAustralia/Geodesy-Web-Services,GeoscienceAustralia/Geodesy-Web-Services,GeoscienceAustralia/geodesy-domain-model,GeoscienceAustralia/Geodesy-Web-Services,GeoscienceAustralia/Geodesy-Web-Services