Revert "Fix all Python Cookbook links (#22205)" (GH-22424)

This commit reverts commit ac0333e1e117b7f61ed7ef1dbcdb6e515ada603b as the original links are working again and they provide extended features such as comments and alternative versions.
diff --git a/Doc/faq/programming.rst b/Doc/faq/programming.rst
index fd0adc3..4f4ea8b 100644
--- a/Doc/faq/programming.rst
+++ b/Doc/faq/programming.rst
@@ -1141,7 +1141,7 @@
 
 See the Python Cookbook for a long discussion of many ways to do this:
 
-   https://github.com/ActiveState/code/tree/master/recipes/Python/52560_Remove_duplicates/recipe-52560.py
+   https://code.activestate.com/recipes/52560/
 
 If you don't mind reordering the list, sort it and then scan from the end of the
 list, deleting duplicates as you go::