RFR: JDK-8260222: remove unused _thread member SymbolTableLookup

[David Holmes]

On Thu, 21 Jan 2021 09:44:32 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

> The class SymbolTableLookup has an unused member _thread. This could be removed.
> See also the related sonar finding (claiming an uninitialized field) :
> 
> https://sonarcloud.io/project/issues?id=jdk&open=AXaE0c2j8L9hkQskF8y_&resolved=false&types=BUG
> 
> Thanks, Matthias

LGTM and trivial.

Thanks,
David

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Marked as reviewed by dholmes (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/2180