RFR: CODETOOLS-7902830: dtraceasm: do not Process.destroy the dtrace process

[Aleksey Shipilev]

Look here:
 https://mail.openjdk.java.net/pipermail/jmh-dev/2021-February/003134.html

Process.destroy closes the streams, so whatever output the profiler had accrued would be lost.

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Commit messages:
 - CODETOOLS-7902830: dtraceasm: do not Process.destroy the dtrace process

Changes: https://git.openjdk.java.net/jmh/pull/22/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jmh&pr=22&range=00
  Issue: https://bugs.openjdk.java.net/browse/CODETOOLS-7902830
  Stats: 28 lines in 2 files changed: 10 ins; 17 del; 1 mod
  Patch: https://git.openjdk.java.net/jmh/pull/22.diff
  Fetch: git fetch https://git.openjdk.java.net/jmh pull/22/head:pull/22

PR: https://git.openjdk.java.net/jmh/pull/22