Hello Kelly,
Please try the following steps
SELECT
*
FROM [ContentDBName].[dbo].[AllLists]
where tp_FeatureId = 'ab15b0c9-3ce5-4b02-a099-cfd028f3c2ef'
$w = Get-SPWeb “http://WebApplicationUrl”
$w.Lists.Delete([System.Guid]$w.Lists["Idera SharePoint Backup Self-Service Recovery Users"].ID)
Kind Regards