Remove Python 2 test code

Author: oschwald

tests/database_test.py

@@ -5,6 +5,7 @@
 
 import ipaddress
 import sys
+import unittest
 
 sys.path.append("..")
 
@@ -14,16 +15,7 @@
 try:
     import maxminddb.extension
 except ImportError:
-    maxminddb.extension = None
-
-if sys.version_info[:2] == (2, 6):
-    import unittest2 as unittest
-else:
-    import unittest
-
-if sys.version_info[0] == 2:
-    unittest.TestCase.assertRaisesRegex = unittest.TestCase.assertRaisesRegexp
-    unittest.TestCase.assertRegex = unittest.TestCase.assertRegexpMatches
+    maxminddb.extension = None  # type: ignore
 
 
 class BaseTestReader(unittest.TestCase):

tests/models_test.py

@@ -5,20 +5,12 @@
 
 import sys
 from typing import Dict
+import unittest
 
 sys.path.append("..")
 
 import geoip2.models
 
-if sys.version_info[:2] == (2, 6):
-    import unittest2 as unittest
-else:
-    import unittest
-
-if sys.version_info[0] == 2:
-    unittest.TestCase.assertRaisesRegex = unittest.TestCase.assertRaisesRegexp
-    unittest.TestCase.assertRegex = unittest.TestCase.assertRegexpMatches
-
 
 class TestModels(unittest.TestCase):
     def test_insights_full(self) -> None:

tests/webservice_test.py

@@ -5,6 +5,7 @@
 import ipaddress
 import sys
 from typing import cast, Dict
+import unittest
 
 sys.path.append("..")
 
@@ -21,15 +22,6 @@
 )
 from geoip2.webservice import Client
 
-if sys.version_info[:2] == (2, 6):
-    import unittest2 as unittest
-else:
-    import unittest
-
-if sys.version_info[0] == 2:
-    unittest.TestCase.assertRaisesRegex = unittest.TestCase.assertRaisesRegexp
-    unittest.TestCase.assertRegex = unittest.TestCase.assertRegexpMatches
-
 
 class TestClient(unittest.TestCase):
     def setUp(self):