This PR updates webkit to v617.1. Verified build on Mac,Windows and linux. Sanity testing looks fine. No issues observed in HelloWebView as well
------------- Commit messages: - Remove unwanted files - Update webkit to v617.1 Changes: https://git.openjdk.org/jfx/pull/1328/files Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=1328&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8318614 Stats: 289254 lines in 6439 files changed: 170206 ins; 83308 del; 35740 mod Patch: https://git.openjdk.org/jfx/pull/1328.diff Fetch: git fetch https://git.openjdk.org/jfx.git pull/1328/head:pull/1328 PR: https://git.openjdk.org/jfx/pull/1328
