Revert "Skip test_abort_clients"

This was fixed upstream in https://github.com/python/cpython/pull/123443

This reverts commit 75fa60d507.
This reverts commit f01f38eff5.

python3.13.spec

@@ -1286,7 +1286,6 @@ CheckPython() {
   # test_check_probes is failing since it was introduced in 3.12.0rc1,
   # the test is skipped until it is fixed in upstream.
   # see: https://github.com/python/cpython/issues/104280#issuecomment-1669249980
-  # test_abort_clients: https://github.com/python/cpython/issues/122136
   # test_signal is skipped due to https://github.com/python/cpython/issues/118989
   # test.test_concurrent_futures.test_deadlock tends to time out on s390x in
   # freethreading{,-debug} build, skipping it to shorten the build time
@@ -1294,7 +1293,6 @@ CheckPython() {
     -wW --slowest %{_smp_mflags} --timeout=2700 \
     -i test_freeze_simple_script \
     -i test_check_probes \
-    -i test_abort_clients \
     %ifarch %{mips64}
     -x test_ctypes \
     %endif