How to Close the sprint if EndDate is past date?

[Sweety]

Hello Concern,

We are unable to close the sprint which has having EndDate is Apr-2019.

Can anybody please suggest how to remove that sprint..It is still showing in our Active sprint.Also DeleteSprint option is not visible on the dashboard.

Please suggest.

Regards,

Sweety 

[Sweety]

Attaching image for more details... Please suggest how to close the current sprint for the PastDated EndDate.