remove not needed unlink in installer test
remove not needed unlink in installer test

xx621998xx/server,cernbox/core,Ardinis/server,pollopolea/core,lrytz/core,andreas-p/nextcloud-server,jbicha/server,owncloud/core,pixelipo/server,whitekiba/server,bluelml/core,nextcloud/server,Ardinis/server,cernbox/core,whitekiba/server,IljaN/core,Ardinis/server,bluelml/core,whitekiba/server,michaelletzgus/nextcloud-server,IljaN/core,IljaN/core,phil-davis/core,pmattern/server,xx621998xx/server,pmattern/server,pixelipo/server,Ardinis/server,endsguy/server,jbicha/server,owncloud/core,andreas-p/nextcloud-server,nextcloud/server,owncloud/core,owncloud/core,cernbox/core,pixelipo/server,pmattern/server,xx621998xx/server,owncloud/core,lrytz/core,cernbox/core,xx621998xx/server,andreas-p/nextcloud-server,endsguy/server,sharidas/core,IljaN/core,lrytz/core,lrytz/core,whitekiba/server,michaelletzgus/nextcloud-server,bluelml/core,xx621998xx/server,lrytz/core,endsguy/server,IljaN/core,pollopolea/core,michaelletzgus/nextcloud-server,jbicha/server,pixelipo/server,Ardinis/server,andreas-p/nextcloud-server,bluelml/core,pollopolea/core,sharidas/core,pixelipo/server,pollopolea/core,sharidas/core,cernbox/core,sharidas/core,pmattern/server,bluelml/core,pollopolea/core,pmattern/server,nextcloud/server,sharidas/core,whitekiba/server,jbicha/server,michaelletzgus/nextcloud-server,jbicha/server,endsguy/server,endsguy/server,nextcloud/server,andreas-p/nextcloud-server