diff --git a/dateutil/test/test_tz.py b/dateutil/test/test_tz.py
index 54dfb1b..e93cf65 100644
--- a/dateutil/test/test_tz.py
+++ b/dateutil/test/test_tz.py
@@ -944,12 +944,6 @@ def test_tzlocal_utc_unequal(tzvar):
 
 
 @mark_tzlocal_nix
-def test_tzlocal_local_time_trim_colon():
-    with TZEnvContext(':/etc/localtime'):
-        assert tz.gettz() is not None
-
-
-@mark_tzlocal_nix
 @pytest.mark.parametrize('tzvar, tzoff', [
     ('EST5', tz.tzoffset('EST', -18000)),
     ('GMT', tz.tzoffset('GMT', 0)),