Don't document the types of standard typedefs

[Joseph S. Myers]

On Sun, 26 Feb 2012, Carlos O'Donell wrote:

> I don't understand your meaning about a lack of a 64-bit port for GNU
> Hurd being the reason behind these descriptions? Could you explain
> that in more detail?

Various of these types differ for GNU/Linux between 32-bit and 64-bit 
architectures - so the only reason that they are constant on all GNU/Hurd 
systems is likely that the only vaguely functional GNU/Hurd port is to 
32-bit x86.

-- 
Joseph S. Myers
joseph@codesourcery.com