[PATCH] malloc: Remove dumped heap support

[Wilco Dijkstra]

Hi,

> So I take that there is no blocker for this change, I need it only requires
> a NEWS entry on 'Deprecated and removed features'.

Would something like:

 Deprecated and removed features, and other changes affecting compatibility:
 
* Support for dumped heaps has been removed - malloc_set_state() now always
  returns the error code -1.

be sufficient?

Cheers,
Wilco