As we introduce a new table to record the relationship between the artifacts and labels, the current way to list label's resources doesn't work anymore, and the API isn't needed by any features, remove it in 2.0
Signed-off-by: Wenkai Yin <yinw@vmware.com>
1, set harbor to readonly
2, select the candidate artifacts from Harbor DB.
3, call registry API(--delete-untagged=false) to delete manifest bases on the results of #2
4, clean keys of redis DB of registry, clean artifact trash and untagged from DB.
5, roll back readonly.
Signed-off-by: wang yan <wangyan@vmware.com>
