Updated icu to v71.1. Verified build and sanity testing on windows,Mac and Linux. Removed icu directory from Source/WTF, as the functionality is already provided by Source/ThirdParty/icu
------------- Commit messages: - Update file permission for rbbicst.pl - update file permission - Remove tabs - whitespace corrections - Remove white spaces - Update icu version and checksum - Update icu to v71-1 Changes: https://git.openjdk.org/jfx/pull/893/files Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=893&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8289541 Stats: 152378 lines in 757 files changed: 11009 ins; 123550 del; 17819 mod Patch: https://git.openjdk.org/jfx/pull/893.diff Fetch: git fetch https://git.openjdk.org/jfx pull/893/head:pull/893 PR: https://git.openjdk.org/jfx/pull/893
