RFR: Remove MemberNameLeak test from ProblemList

[Aleksey Shipilev]

We have left-over entry in ProblemList here:

https://builds.shipilev.net/patch-openjdk-shenandoah-jdk/v87-vs-f0f5d23449d3/test/hotspot/jtreg/ProblemList.txt.sdiff.html

We have cherry-picked it earlier here:
  http://hg.openjdk.java.net/shenandoah/jdk/rev/1278eeea1a96

Upstream does not have it anymore:
  http://hg.openjdk.java.net/jdk/jdk/file/3fabe59fe4de/test/hotspot/jtreg/ProblemList.txt#l87

Because it got the fix:
  http://hg.openjdk.java.net/jdk/jdk/rev/0c4f2b26849e

This removes the cherry-pick from sh/jdk:

diff -r a0d4bdb59751 test/hotspot/jtreg/ProblemList.txt
--- a/test/hotspot/jtreg/ProblemList.txt        Wed Sep 19 12:26:35 2018 +0200
+++ b/test/hotspot/jtreg/ProblemList.txt        Wed Sep 19 12:33:00 2018 +0200
@@ -85,5 +85,4 @@
 runtime/RedefineTests/RedefineRunningMethods.java 8208778 macosx-x64
 runtime/SharedArchiveFile/SASymbolTableTest.java 8193639 solaris-all
-runtime/MemberName/MemberNameLeak.java 8209844 generic-all

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Testing: run-test runtime/MemberName/MemberNameLeak

-Aleksey