[rfa:sparc] Remove write_fp() from sparc-tdep.c

[Andrew Cagney]

> Andrew Cagney wrote:
> 
>> 
>> Hello,
>> 
>> The attached deletes the write_fp() function from the sparc-tdep.c code.
>> 
>> Ok?
>> 
>> Once this is in, I'll commit the other patch that simply deletes
>> write_fp() from the architecture vector.
> 
> 
> Looks good.
>  

Thanks!  I'll add a comment explaing the history of that bit of code as 
well before committing.

Andrew