RFR: 8256675: Zero: purge biased locking support [v2]

[Aleksey Shipilev]

On Thu, 19 Nov 2020 19:55:34 GMT, Patricio Chilano Mateo <pchilanomate at openjdk.org> wrote:

> There are 3 places left when unlocking the monitor where there is a has_bias_pattern() check. Maybe change them into an assert? (seems Github doesn't allow to add comments on collapsed lines).

Right on, I missed them. See another commit.

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PR: https://git.openjdk.java.net/jdk/pull/1322