Teams - How to delete a group in MS Teams

Currently, It is still not possible to delete chats or group chats because the feature is still not available yet.

1. Hide chats.
   You can hide it by hovering your mouse over the chat > select (...) > hide.
2. Using retention policy (on the paid plan only)
   https://docs.microsoft.com/en-us/microsoftteams/retention-policies#how-teams-retention-policies-work