Fixes layer preview bug by removing layergroup config files
Fixes layer preview bug by removing layergroup config files

bradh/geowave,mses-bly/geowave,ngageoint/geowave,aashish24/geowave,bradh/geowave,mses-bly/geowave,dcy2003/geowave,spohnan/geowave,ruks/geowave,spohnan/geowave,mses-bly/geowave,bradh/geowave,viggyprabhu/geowave,locationtech/geowave,viggyprabhu/geowave,aashish24/geowave,chizou/geowave,chizou/geowave,ngageoint/geowave,kcompher/geowave,kcompher/geowave,viggyprabhu/geowave,mses-bly/geowave,kcompher/geowave,dcy2003/geowave,locationtech/geowave,Becca42/geowave,viggyprabhu/geowave,spohnan/geowave,chizou/geowave,viggyprabhu/geowave,locationtech/geowave,chizou/geowave,ngageoint/geowave,ruks/geowave,bradh/geowave,aashish24/geowave,dcy2003/geowave,Becca42/geowave,ruks/geowave,Becca42/geowave,aashish24/geowave,Becca42/geowave,aashish24/geowave,ngageoint/geowave,aashish24/geowave,kcompher/geowave,ruks/geowave,dcy2003/geowave,viggyprabhu/geowave