Remove onunload handler when delete is cancelled.
Remove onunload handler when delete is cancelled.

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