RFR: 8259317: Remove JVM option BreakAtWarning

Wed Jan 6 20:25:56 UTC 2021

On Wed, 6 Jan 2021 19:10:08 GMT, Harold Seigel <hseigel at openjdk.org> wrote:

> Please review this trivial change to remove the old JVM develop BreakAtWarning flag.
> 
> The change was tested with Mach5 tiers 1-3 on Linux, Windows, and Mac OS.
> 
> Thanks, Harold

LGTM.
Lois

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Marked as reviewed by lfoltan (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/1966