RFR: 8230523: Remove abortOnException diagnostic option from TestHumongosNonArrayAllocation.java

[Roger Riggs]

Test cleanup to remove a command line option used to gather more information about a previous failure.
The option is no longer needed.

The original test issue was:     8249217: Unexpected StackOverflowError in "process reaper" thread still happens

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Commit messages:
 - 8230523: Remove abortOnException diagnostic option from TestHumongousNonArrayAllocation.java

Changes: https://git.openjdk.java.net/jdk/pull/1841/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=1841&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8230523
  Stats: 5 lines in 1 file changed: 0 ins; 0 del; 5 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1841.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1841/head:pull/1841

PR: https://git.openjdk.java.net/jdk/pull/1841