Remove _BSD_SOURCE and _SVID_SOURCE

[Joseph S. Myers]

On Fri, 6 Dec 2013, Ondrej Bilka wrote:

> What script did you used? As this is big patch I want to distinguish
> between parts that can be checked automatically from manual changes.

I did not use a script.  It was a combination of interactive search and 
replace where there were common patterns, together with reviewing every 
__USE_MISC reference after such changes to see which could be simplified 
further, and every #endif of a modified #if to identify cases where the 
closing comment needed updating.

-- 
Joseph S. Myers
joseph@codesourcery.com