Remove V8_INLINE from v8-util.h.

(These have been causing compilation problems on some
platforms. For VS, V8_INLINE turns into 'force inline',
which will then cause a problem when the compiler won't
actually inline. Search for "C4714 warning" for details.)

BUG=
R=jochen@chromium.org

Review URL: https://codereview.chromium.org/212693006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@20432 ce2b1a6d-e550-0410-aec6-3dcde31c8c00