[jdk17u-dev] RFR: 8289197: [17u] Push of backport of 8286177 did not remove assertion

[Goetz Lindenmaier]

When I pushed 8286177, I missed removing the assertion that was 
addressed by that change.  This is corrected by this follow up.

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Commit messages:
 - 8289197: [17u] Push of backport of 8286177 did not remove assertion

Changes: https://git.openjdk.org/jdk17u-dev/pull/509/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=509&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8289197
  Stats: 2 lines in 1 file changed: 0 ins; 2 del; 0 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/509.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev pull/509/head:pull/509

PR: https://git.openjdk.org/jdk17u-dev/pull/509