RFR: 8277748: Obsolete the MinInliningThreshold flag in JDK 19

[Vladimir Kozlov]

On Fri, 7 Jan 2022 12:41:26 GMT, Emanuel Peter <duke at openjdk.java.net> wrote:

> Changed `MinInliningThreshold` from `Depricated` (for JDK 18) to `Obsolete` (for JDK 19).
> 
> Checked that tests are not affected.

Good.

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Marked as reviewed by kvn (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/6986