RFR: 8313357: Revisit requiring SA tests on OSX to either run as root or use sudo

[Chris Plummer]

On OSX, don't require that sudo be used to launch SA tools if developer mode is enabled. More details are in the CR. 

Due to this change, the following tests are no longer being skipped if the host has developer mode is enabled. They previously required running as root because if sudo was used some files were created with root ownership and could not be deleted:

serviceability/sa/ClhsdbDumpclass.java
serviceability/sa/TestClassDump.java

I tested on my home system (M1) with developer mode enabled and also disabled. Also tested with CI, which appears to have developer mode disabled on most hosts, but there are a few where it is enabled.

-------------

Commit messages:
 - Merge branch 'master' into 8313357_dev_mode
 - don't require sudo when in developer mode

Changes: https://git.openjdk.org/jdk/pull/15238/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=15238&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8313357
  Stats: 55 lines in 1 file changed: 51 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/jdk/pull/15238.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15238/head:pull/15238

PR: https://git.openjdk.org/jdk/pull/15238