Update version test case

Author: rhpvorderman

tests/test_zlib_compliance.py

@@ -43,12 +43,7 @@ def test_library_version(self):
         # the minor versions will match (even on the machine on which the
         # module was compiled), and the API is stable between minor versions,
         # so testing only the major versions avoids spurious failures.
-        # TODO: Ask for isal current version upstream
-        if sys.platform.startswith("win"):
-            # No isa-l.h on windows, so no version information there.
-            self.assertEqual(isal.ISAL_MAJOR_VERSION, None)
-        else:
-            self.assertEqual(isal.ISAL_MAJOR_VERSION, 2)
+        self.assertEqual(isal.ISAL_MAJOR_VERSION, 2)
 
 
 class ChecksumTestCase(unittest.TestCase):