RFR: 8288287: Remove expired flags in JDK 21

[David Holmes]

On Fri, 9 Dec 2022 03:30:48 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

>> It is that time of the release again. :)
>> 
>> The VM option flags that expire in JDK 21 are removed from the flags table.
>> 
>> The java manpage is updated in relation to the obsoleted and expired/removed  options.
>> 
>> Testing: tiers 1-3 sanity testing
>> 
>> Thanks.
>
> Good.

Thanks @vnkozlov !

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PR: https://git.openjdk.org/jdk/pull/11603