git: openjdk/loom: fibers: Remove Fuzz from problem list

[duke]

Changeset: 39713b4e
Author:    Ron Pressler <ron.pressler at oracle.com>
Date:      2020-08-18 19:57:06 +0000
URL:       https://git.openjdk.java.net/loom/commit/39713b4e

Remove Fuzz from problem list

! test/jdk/ProblemList.txt
! test/jdk/java/lang/Continuation/Fuzz.java
! test/jdk/java/lang/Continuation/fuzz.dat