RFR: 8354255: [jittester] Remove TempDir debug output

[Evgeny Nikitin]

JITTester's TempDir prints debug information about creation and deletion of a temporary folder, like this:

DBG: Temp folder created: '/tmp/java_tests8412639693749199985'
DBG: Temp folder deleted: '/tmp/java_tests8412639693749199985'

As jittester is a library, TempDir can be used in other tools. Debug outputs mess up logs, confuse output comparison tools, etc. And do not give any valuable information (as temp folder with its contents is deleted after VM shutdown).

This PR removes the debug outputs.

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Commit messages:
 - 8354255: [jittester] Remove TempDir debug output

Changes: https://git.openjdk.org/jdk/pull/24573/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24573&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8354255
  Stats: 4 lines in 1 file changed: 0 ins; 3 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/24573.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24573/head:pull/24573

PR: https://git.openjdk.org/jdk/pull/24573