RFR: 8325742: Remove MetaWord usage from MemRegion

[Thomas Schatzl]

On Tue, 13 Feb 2024 12:58:01 GMT, Stefan Karlsson <stefank at openjdk.org> wrote:

> There's a MemRegion constructor that takes MetaWord*s arguments. This is left-over from the permgen removal and it isn't used anymore. I propose that we remove it.

lgtm.

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Marked as reviewed by tschatzl (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/17828#pullrequestreview-1879875563