updated the unit test for OCP\Share::unshareAll() to verify that shares by all users are removed for an item.
updated the unit test for OCP\Share::unshareAll() to verify that shares by all users are removed for an item.

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