RFR: 8276880: Remove java/lang/RuntimeTests/exec/ExecWithDir as unnecessary

[Alan Bateman]

On Tue, 9 Nov 2021 16:05:52 GMT, Roger Riggs <rriggs at openjdk.org> wrote:

> The java/lang/RuntimeTests/exec/ExecWithDir test forks 500 subprocesses hoping to trigger an intermittent problem fixed in 2002.
> 
> The test can be removed, it does not exercise the condition it was created for.

Marked as reviewed by alanb (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/6318