Removes any classifications from a file.
This API can also be called by including the enterprise ID in the
URL explicitly, for example
/files/:id//enterprise_12345/securityClassification-6VMVochwUWo.
The access token received from the authorization server in the OAuth 2.0 flow.
The unique identifier that represents a file.
The ID for any file can be determined
by visiting a file in the web application
and copying the ID from the URL. For example,
for the URL https://*.app.box.com/files/123
the file_id is 123.
Returns an empty response when the classification is successfully deleted.