Hey Baz,
That little bracket seems to be removable. It has a plastic washer at the pivot point that just screws off to remove it... 1st pic. Only problem is the triangular guide for the belt (2nd pic) that will not slide off at the end of the belt due to the steel anchor point so you'd need to carefully cut this to remove the belt out of it.
Easy enoough I assume as it doesn't appear to have a metal core from what I can make out.
3rd pic might just help you make out if it's the same as your own