Asynchronously delete a file.
If the this is a directory, it will only be deleted if it is empty. This has the same semantics as unlink.
| this |
input File |
| io_priority |
the I/O priority of the request |
| cancellable |
optional Cancellable object, null to ignore |
| callback |
a AsyncReadyCallback to call when the request is satisfied |
| user_data |
the data to pass to callback function |