Jira Cloud - Find all issues in an Epic

Suppose after importing the zip file to jira cloud schema we have host 1 and host 2 same configuration and we want only host1 to be present and want host 2 to delete so we can easily do it by delete button on top screen but if ccase 100 duplicate option we need to bulk delete it how to do it

Can u please tell how to delete duplicate asset in jira schema .