RFR: 8372651: Remove unreachable code in sun.awt.geom.AreaOp::calculate

[Alexander Zvegintsev]

On Thu, 27 Nov 2025 08:58:50 GMT, wb-zjp846396 <duke at openjdk.org> wrote:

> JBS: https://bugs.openjdk.org/browse/JDK-8372651
> 
> Summary:
> - Fix a constant-condition `if` statement in `AreaOp.java` line 160.
> - Clean up dead code and clarify control flow.
> 
> Testing:
> - No functional modification involved.

Marked as reviewed by azvegint (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/28528#pullrequestreview-3552284688