[HDDS-945] Fix generics warnings in delegation token

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.4.0
• Target Version/s: 0.4.0
• Sprint: HDDS BadLands
• Assignee: Ajay Kumar
• Reporter: Ajay Kumar
• Created: 19/Dec/18 21:02
• Updated: 18/Jan/19 23:41
• Resolved: 04/Jan/19 23:22

Description

There are warnings in genrics related code in OzoneDelegationTokenSecretManager and OzoneSecretStore. Since we already have base class which can be used for other kind of identifiers we can remove this generics related code as fixing it will make it bit more complicated (also looks unnecessary for current use cases)