It is important to understand what happens when you revert Data ONTAP to a release that does not support BranchCache.
Instead, they request the actual content using normal SMB read requests. In response to the request for content, the CIFS server sends the actual content that is stored on the Vserver.
This command deletes the BranchCache configuration and hashes.
After the revert completes, the storage administrator can manually delete the directory that contained the hash store if desired.