Revert "Add methods to enable configuration of ResourceConstraints based on limits derived at runtime." and "Fix Windows build of defaults.cc."

This reverts commit r16964 and r16968 due to performance regressions in octane.

TBR=hpayer@chromium.org

Review URL: https://codereview.chromium.org/24996003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@16979 ce2b1a6d-e550-0410-aec6-3dcde31c8c00