Remove test case that tries to allocate impossible amounts

Remove test case that tries to allocate impossible amounts

The sanitizer bots are failing with this test; they
impose a maximum 0x10000000000 size on allocations, and
malloc on darwin will let me malloc that much.  The
alternative to keep this would be to break it out into a
seperate test in TestProcessAIP and skip that if it's on
the sanitizer, but this is seeming too fragile IMO so I'm
punting it entirely.