Get rid of `list` argument in debug agent's `removeNode()` API. The list is stored in the node, so no need to pass it in.
------------- Commit messages: - Remove list argument from removeNode() Changes: https://git.openjdk.org/jdk/pull/11101/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=11101&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8295861 Stats: 7 lines in 1 file changed: 1 ins; 1 del; 5 mod Patch: https://git.openjdk.org/jdk/pull/11101.diff Fetch: git fetch https://git.openjdk.org/jdk pull/11101/head:pull/11101 PR: https://git.openjdk.org/jdk/pull/11101
