Remove unused headers from boost directory. Fixes #3062.
Merged revisions 50645,53756 via svnmerge from
https://svn.boost.org/svn/boost/trunk
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r50645 | ramey | 2009-01-16 21:15:25 +0000 (Fri, 16 Jan 2009) | 1 line
remove unused headers from boost directory
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r53756 | danieljames | 2009-06-08 20:30:20 +0100 (Mon, 08 Jun 2009) | 1 line
Update include from boost/pfto.hpp to boost/serialization/pfto.hpp. Refs #3062.
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