Removing redundant entries in `lib/tzmappings` file on Windows. The file maps Windows time zones to Java time zones according to the region. Since `001` means world, no region-specific entries are needed if those time zones are the same. The diff of the generated tzmappings files, before and after the fix, is attached. [tzmappings.diff.txt](https://github.com/openjdk/jdk/files/12752377/tzmappings.diff.txt)
------------- Commit messages: - initial commit Changes: https://git.openjdk.org/jdk/pull/15968/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=15968&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8317126 Stats: 2 lines in 1 file changed: 2 ins; 0 del; 0 mod Patch: https://git.openjdk.org/jdk/pull/15968.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/15968/head:pull/15968 PR: https://git.openjdk.org/jdk/pull/15968
