[jdk11u-dev] RFR: 8292946: GC lock/jni/jnilock001 test failed "assert(gch->gc_cause() == GCCause::_scavenge_alot || !gch->incremental_collection_failed()) failed: Twice in a row"

[Andrew Lu]

I backport this for parity with 11.0.23-oracle.

this is not in problemList, only remove the assert.

-------------

Commit messages:
 - Backport 9833c025fd7daf6bb1be81d93148a4204a9f184c

Changes: https://git.openjdk.org/jdk11u-dev/pull/2338/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2338&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8292946
  Stats: 4 lines in 1 file changed: 0 ins; 4 del; 0 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2338.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2338/head:pull/2338

PR: https://git.openjdk.org/jdk11u-dev/pull/2338