git: openjdk/jdk17u-dev: 8359207: Remove runtime/signal/TestSigusr2.java since it is always skipped

[SendaoYan]

Changeset: 5d55655f
Branch: master
Author:    SendaoYan <syan at openjdk.org>
Date:      2025-09-05 07:45:55 +0000
URL:       https://git.openjdk.org/jdk17u-dev/commit/5d55655f6a3f3ebf076bdd3174362f4d6de6b9fe

8359207: Remove runtime/signal/TestSigusr2.java since it is always skipped

Backport-of: 51877f568ba84a8ec7721656571c90c5eb952eb3

! test/hotspot/jtreg/runtime/signal/SigTestDriver.java
- test/hotspot/jtreg/runtime/signal/TestSigusr2.java