How does one delete dashboards? I was able to create one, I can "manage" aka modify it, but I cannot figure out how to delete it.
I am using these versions:
```
$ cat */.git/FETCH_HEAD
ec948a276d86101176a42db4b6d762ffd0773334 branch 'master' of https://github.com/phacility/arcanist
8695cdb1270bc641a42fa72ecd314524c15a31d7 branch 'master' of https://github.com/phacility/libphutil
34a90a0d2b4d04fd101817dd56b78b7bafb50ce9 branch 'master' of https://github.com/phacility/phabricator
```