obexd: Use emitting function wrapped for transfer

Also replaces emit_transfer_progress() with the new wrapper function
because the total/transferred arguments have not been used since commit
a5c2b6e8 ("obexd: Align client and server spec of org.bluez.obex.Transfer1")
and g_dbus_emit_property_changed_full() checks if the path argument is
NULL.
2 files changed