Issue #11727, issue #11753, issue #11755: disable regrtest timeout

Disable regrtest timeout until #11753 and #11755 are fixed
diff --git a/Misc/NEWS b/Misc/NEWS
index 9fa8853..9afa06c 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -370,9 +370,8 @@
 Tests
 -----
 
-- Issue #11727: If a test takes more than 30 minutes, regrtest dumps the
-  traceback of all threads and exits. Use --timeout option to change the
-  default timeout or to disable it.
+- Issue #11727: Add a --timeout option to regrtest: if a test takes more than
+  TIMEOUT seconds, dumps the traceback of all threads and exits.
 
 - Issue #11653: fix -W with -j in regrtest.