Remove the FreeBSD 10 hack

[bapt]

Summary

The huge libtool work that have past should have fixed the situation
It might be interesting to get exp-run with that patch (on freebsd 10)
to see what happen

[antoine]

I will exp-run this after PR 194068 is committed.

[tijl]

USES=libtool doesn't patch this and config.rpath is gettext related, so I don't think you can remove this yet. Maybe it's possible to move this to a USES=fbsd10fix.

[bapt]

I want to first see how many things are inpacted now

[antoine]

Exp-run results:

http://package18.nyi.freebsd.org/build.html?mastername=101amd64-default-D881&build=2014-10-06_09h37m45s

Half of the ports tree is skipped

[tijl]

Some ports seem to have succeeded but the packages are missing some files, e.g. libiconv:
http://package18.nyi.freebsd.org/data/101amd64-default-D881/2014-10-06_09h37m45s/logs/libiconv-1.14_4.log

[tijl]

Currently the message printed by the fix (===> FreeBSD 10 autotools fix applied to...) is always shown even if there are no changes to a file. If it were only shown if file and file.fbsd10bak are different (using "cmp -s"?) it would be easier to find out which ports still need it.

[bdrewery]

Please include a CHANGES entry on how to fix ports that fail due to not having this. It is needed for vendors and people who maintain custom trees.