Issue #14040: Remove rarely used file name suffixes for C extensions (under POSIX mainly).

This will improve import performance a bit (especially under importlib).
diff --git a/Misc/NEWS b/Misc/NEWS
index d9ad8fc..6e010b7 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -10,6 +10,9 @@
 Core and Builtins
 -----------------
 
+- Issue #14040: Remove rarely used file name suffixes for C extensions
+  (under POSIX mainly).
+
 - Issue #14051: Allow arbitrary attributes to be set of classmethod and
   staticmethod.