Killing fixproto (possible target obsoletion)

[E. Weddington]

Nathanael Nerode wrote:

>Propose to stop using fixproto immediately:
>
>avr-*-*
>  
>

I'm not even sure exactly what fixproto is supposed to do, but I 
*highly* doubt that it is needed for the AVR target. The AVR target is 
an embedded processor that uses it's own C library, avr-libc:
<http://savannah.nongnu.org/projects/avr-libc/>
So there aren't any "old system headers" around. The RTEMS target for 
the AVR *may* use newlib, but I don't what the status of that is. Ralf 
or Joel would have to chime in on this aspect.
The AVR target no longer uses fixincludes anyway. If there are any 
problems with the headers, we should be able fix them directly in avr-libc.

HTH
Eric