RFR: 8293064: Remove unused NET_xxx functions

[Michael McMahon]

On Mon, 19 Sep 2022 14:32:24 GMT, Darragh Clarke <duke at openjdk.org> wrote:

> No tests were affected so this is purely a removal PR apart from updating copyright headers.
> I ran tests for Tier 1,2&3 and everything seems to be passing

Have the AIX changes been verified with an AIX build?

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PR: https://git.openjdk.org/jdk/pull/10343