RFR: 8290327: Remove java/lang/reflect/callerCache/ReflectionCallerCacheTest.java from ProblemList-Xcomp.txt

[Mandy Chung]

On Thu, 14 Jul 2022 21:01:05 GMT, Mandy Chung <mchung at openjdk.org> wrote:

> It's expected that [JDK-8287596](https://bugs.openjdk.org/browse/JDK-8287596) has resolved [JDK-8288286](https://bugs.openjdk.org/browse/JDK-8288286). Remove ReflectionCallerCacheTest.java from the problem list for test execution.

I want to let the test executed in CI for 20 for a little while.  If it's okay, then will backport to 19.

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PR: https://git.openjdk.org/jdk/pull/9500