ticket:9673: Since range 2 is restored to a1-e4, delete the now-irrelevant comment about it

git-svn-id: http://source.icu-project.org/repos/icu/icu/trunk/source@33303 251d0590-4201-4cf1-90de-194747b24ca1
ticket:9751: Added LCID mapping data for locales newly added in Windows 8 to resolve test failures.

git-svn-id: http://source.icu-project.org/repos/icu/icu/trunk/source@33304 251d0590-4201-4cf1-90de-194747b24ca1