Removing the asset that is not uploaded from the device but lives in the content

[jakub-gawronski-wttech]

When using the inputs.file method, ACM allows to upload the file from the device, which internally uploads the file under the /var/acm (e.g. /var/acm/file/2026/02/04/b84bf24c-93e1-4347-9b00-e93ca96fd818/file.csv.
The UI allows to remove such file, which removes it from both - /var/acm and the UI:

However, when providing a file from outside the /var/acm directory (e.g. /content/dam/experience/file.csv), the delete button doesn't work, since we cannot remove the file that is stored outside ACM's own directory:

In such scenario, the input's value should be reset from the UI, without trying to remove the file itself.

[krystian-panek-vmltech]

deleting should be only allowed for tmp files, to be bug fixed