RFR: 8350524: Some hotspot/jtreg/serviceability/dcmd/vm tier1 tests fail on static JDK

[Jiangli Zhou]

Please review the fix in following tests to not check for shared libraries when running on static JDK:

test/hotspot/jtreg/serviceability/dcmd/vm/DynLibsTest.java
test/hotspot/jtreg/serviceability/dcmd/vm/SystemDumpMapTest.java
test/hotspot/jtreg/serviceability/dcmd/vm/SystemMapTest.java

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Commit messages:
 - Update copyright headers.
 - Remove unneeded `import jdk.test.whitebox.WhiteBox;`
 - Don't look for shared libraries on static JDK.

Changes: https://git.openjdk.org/jdk/pull/23734/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23734&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8350524
  Stats: 67 lines in 4 files changed: 46 ins; 4 del; 17 mod
  Patch: https://git.openjdk.org/jdk/pull/23734.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23734/head:pull/23734

PR: https://git.openjdk.org/jdk/pull/23734