RFR: 8353299: VerifyJarEntryName.java test fails

[Hai-May Chao]

Please review the change for JDK-8353299.

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Commit messages:
 - Remove altering signature file name test

Changes: https://git.openjdk.org/jdk/pull/24337/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24337&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8353299
  Stats: 16 lines in 1 file changed: 0 ins; 16 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/24337.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24337/head:pull/24337

PR: https://git.openjdk.org/jdk/pull/24337