Second try to delete folder contents.

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | ---
| Refs tickets  | #1903
| License       | MIT
| Doc PR        | ---

Second try. If this doesn't work either, I don't know what to do (current builds are failing).