[libstdc++-v3] Remove std::construct and std::destroy

[Jason Merrill]

>>>>> "Stephen" == Stephen M Webb <stephen@bregmasoft.com> writes:

> I have a similar patch in the pipe to remove some additional HP names
> that are not a part of the standard.  While I won't suggest this next
> patch go on the branch, I would like some opinion as to whether the
> nonstandard functions should be removed entirely (definition and all),
> have their definitions remain in the library but be unused by the library
> itself, or have their definitions moved into a backwards header.

IMO, code that used to work should continue to work where this is not too
difficult to support.  So I think the definitions should remain in the
library subject to #ifndef __STRICT_ANSI__.

Jason