[jdk25u] RFR: 8359207: Remove runtime/signal/TestSigusr2.java since it is always skipped

[duke]

On Tue, 12 Aug 2025 09:02:46 GMT, Shyam Kishor <duke at openjdk.org> wrote:

> …ipped

@shyamkishororacle 
Your change (at version e6d312e16f7dd73c4bdbb50de93ba5d9bcfafdb4) is now ready to be sponsored by a Committer.

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PR Comment: https://git.openjdk.org/jdk25u/pull/87#issuecomment-3180119712