RFR: 8266162: Remove JPackage duplicate tests

[Alexey Semenyuk]

8266162: Remove JPackage duplicate tests

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Commit messages:
 - 8266162: Remove JPackage duplicate tests

Changes: https://git.openjdk.java.net/jdk/pull/4003/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=4003&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8266162
  Stats: 39 lines in 2 files changed: 39 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/4003.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/4003/head:pull/4003

PR: https://git.openjdk.java.net/jdk/pull/4003