RFR: 8341967: Unify os::current_file_offset and os::seek_to_file_offset across posix platforms

[Martin Doerr]

On Fri, 11 Oct 2024 14:39:57 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

> The methods os::current_file_offset and os::seek_to_file_offset are the same across the POSIX platforms so they can be moved to os_posix.

LGTM.

-------------

Marked as reviewed by mdoerr (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/21471#pullrequestreview-2366100540