Revert "Use non alternate name for Kyiv (pythonGH-108533)" (pythonGH-108649)

This reverts commit 7659128.

It broke tests on the Debian and macOS buildbots.

Author: serhiy-storchaka

Lib/test/test_email/test_utils.py

@@ -148,7 +148,7 @@ def test_localtime_epoch_notz_daylight_false(self):
     @unittest.skipUnless(os.path.exists('/usr/share/zoneinfo') or
                          os.path.exists('/usr/lib/zoneinfo'),
                          "Can't find the Olson's TZ database")
-    @test.support.run_with_tz('Europe/Kyiv')
+    @test.support.run_with_tz('Europe/Kiev')
     def test_variable_tzname(self):
         t0 = datetime.datetime(1984, 1, 1, tzinfo=datetime.timezone.utc)
         t1 = utils.localtime(t0)