We are using tfs-plugin in conjunction with ws-cleanup-plugin as a post-build-step.
The ws-cleanup plugin deletes the Jenkins workspace at the end of the job.
However, TFS retains the tfvc workspace on back-end side and entry remains in the Cache/VersionControl.config
There should be a Jenkins post-build step option to delete the TFVC workspace.
This is cleaner than extending the ws-cleanup plugin.