Remove commented out/ unused code from awt_List.cpp, which has been commented out since 2007, when the code was moved to Mercurial. The test ScrollPaneLimitation.java has been opened under [JDK-8306137](https://bugs.openjdk.org/browse/JDK-8306137), and it should be safe to remove this code now.
------------- Commit messages: - Remove unused code from awt_List.cpp Changes: https://git.openjdk.org/jdk/pull/17378/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=17378&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8301994 Stats: 10 lines in 1 file changed: 0 ins; 10 del; 0 mod Patch: https://git.openjdk.org/jdk/pull/17378.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/17378/head:pull/17378 PR: https://git.openjdk.org/jdk/pull/17378
