[jdk17u] RFR: 8275666: serviceability/jvmti/GetObjectSizeClass.java shouldn't have vm.flagless

[Aleksey Shipilev]

On Mon, 8 Nov 2021 10:06:22 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Clean backport to fix the test. Effectively reverts a hunk from commit that went in JDK 17.
> 
> Additional testing:
>  - [x] Affected test still passes

Got the push approval.

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PR: https://git.openjdk.java.net/jdk17u/pull/236