js/nodetypes: cleanup maven-sling-plugin configuration
js/nodetypes: cleanup maven-sling-plugin configuration

1) the plug-in was configured to automatically install on a
   Sling server instance, which causes the build to fail if a Sling
   server is not started on port 8080, for instance on Jenkins
2) the plug-in overrode 4 configuration properties, but the values
   were set to default, so I just removed the configuration block

git-svn-id: 6eed74fe9a15c8da84b9a8d7f2960c0406113ece@1770000 13f79535-47bb-0310-9956-ffa450edef68

tmaret/sling,headwirecom/sling,roele/sling,roele/sling,mikibrv/sling,trekawek/sling,cleliameneghin/sling,labertasch/sling,awadheshv/sling,ieb/sling,mcdan/sling,anchela/sling,tmaret/sling,mikibrv/sling,ieb/sling,trekawek/sling,awadheshv/sling,labertasch/sling,anchela/sling,tmaret/sling,trekawek/sling,mikibrv/sling,JEBailey/sling,mikibrv/sling,ist-dresden/sling,ist-dresden/sling,tmaret/sling,vladbailescu/sling,anchela/sling,cleliameneghin/sling,headwirecom/sling,anchela/sling,roele/sling,awadheshv/sling,headwirecom/sling,trekawek/sling,JEBailey/sling,vladbailescu/sling,mcdan/sling,mcdan/sling,mikibrv/sling,trekawek/sling,headwirecom/sling,awadheshv/sling,awadheshv/sling,roele/sling,labertasch/sling,ist-dresden/sling,JEBailey/sling,mcdan/sling,ieb/sling,mcdan/sling,headwirecom/sling,JEBailey/sling,ieb/sling,trekawek/sling,ieb/sling,cleliameneghin/sling,cleliameneghin/sling,anchela/sling,mikibrv/sling,ist-dresden/sling,vladbailescu/sling,labertasch/sling,labertasch/sling,ist-dresden/sling,mcdan/sling,JEBailey/sling,ieb/sling,vladbailescu/sling,awadheshv/sling,roele/sling,tmaret/sling,cleliameneghin/sling,vladbailescu/sling