Revert "run-libcore-tests.sh runs test.java.lang.StackWalker tes..."

Revert submission 2172503-runtest-StackWalker

Bug: 241766511

Reason for revert: Luci failures
Reverted Changes:
Ie634fd417:run-libcore-tests.sh runs test.java.lang.StackWalk...

Change-Id: I6c60e5d20aa7d49e71f4dd4ae6bf21e86d177b3d
diff --git a/tools/run-libcore-tests.py b/tools/run-libcore-tests.py
index 6d77435..de1636d 100755
--- a/tools/run-libcore-tests.py
+++ b/tools/run-libcore-tests.py
@@ -120,7 +120,6 @@
   "test.java.lang.Float",
   "test.java.lang.Integer",
   "test.java.lang.Long",
-  "test.java.lang.StackWalker",
   # Sharded test.java.lang.StrictMath
   "test.java.lang.StrictMath.CubeRootTests",
   "test.java.lang.StrictMath.ExactArithTests",