Enable test_remove_subclass

Author: steve-s

graalpython/com.oracle.graal.python.test/src/tests/unittest_tags/test_descr.txt

@@ -71,8 +71,7 @@ test.test_descr.ClassPropertiesAndMethods.test_python_lists @ darwin-arm64,linux
 test.test_descr.ClassPropertiesAndMethods.test_qualname @ darwin-arm64,linux-aarch64,linux-aarch64-github,linux-x86_64,linux-x86_64-github,win32-AMD64,win32-AMD64-github
 test.test_descr.ClassPropertiesAndMethods.test_qualname_dict @ darwin-arm64,linux-aarch64,linux-aarch64-github,linux-x86_64,linux-x86_64-github,win32-AMD64,win32-AMD64-github
 test.test_descr.ClassPropertiesAndMethods.test_recursive_call @ darwin-arm64,linux-aarch64,linux-aarch64-github,linux-x86_64,linux-x86_64-github,win32-AMD64,win32-AMD64-github
-# GR-71917
-!test.test_descr.ClassPropertiesAndMethods.test_remove_subclass
+test.test_descr.ClassPropertiesAndMethods.test_remove_subclass @ linux-x86_64
 test.test_descr.ClassPropertiesAndMethods.test_repr_as_str @ darwin-arm64,linux-aarch64,linux-aarch64-github,linux-x86_64,linux-x86_64-github,win32-AMD64,win32-AMD64-github
 test.test_descr.ClassPropertiesAndMethods.test_repr_with_module_str_subclass @ darwin-arm64,linux-aarch64,linux-aarch64-github,linux-x86_64,linux-x86_64-github,win32-AMD64,win32-AMD64-github
 test.test_descr.ClassPropertiesAndMethods.test_restored_object_new @ darwin-arm64,linux-aarch64,linux-aarch64-github,linux-x86_64,linux-x86_64-github,win32-AMD64,win32-AMD64-github