RFR: 8304501: Remove orphaned demo netbeans projects [v2]

[Eirik Bjorsnos]

On Fri, 7 Apr 2023 02:17:05 GMT, Phil Race <prr at openjdk.org> wrote:

> I am pretty sure Alan was approving the whole lot of them.

Phil,

Thanks, but it seems Alan did not actually approve anything, he simply left an infomational note.

We still only have the approval from Sergey, and it is still not clear what he approved.

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PR Comment: https://git.openjdk.org/jdk/pull/13098#issuecomment-1499983142