RFR: 8369516: Delete duplicate imaging test

[Phil Race]

Delete a duplicate test.

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Commit messages:
 - 8369516

Changes: https://git.openjdk.org/jdk/pull/27736/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=27736&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8369516
  Stats: 484 lines in 1 file changed: 0 ins; 484 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/27736.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27736/head:pull/27736

PR: https://git.openjdk.org/jdk/pull/27736