[jdk21u-dev] RFR: 8326824: Test: remove redundant test in compiler/vectorapi/reshape/utils/TestCastMethods.java

[Goetz Lindenmaier]

I backport this for parity with 21.0.4-oracle.

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Commit messages:
 - Backport 552411f832eb35d739c7978b8c1f8d0dfd4b2161

Changes: https://git.openjdk.org/jdk21u-dev/pull/401/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=401&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8326824
  Stats: 1 line in 1 file changed: 0 ins; 1 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/401.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/401/head:pull/401

PR: https://git.openjdk.org/jdk21u-dev/pull/401