remove some more bsddb references
diff --git a/Doc/reference/datamodel.rst b/Doc/reference/datamodel.rst
index 00516d1..ddc605b 100644
--- a/Doc/reference/datamodel.rst
+++ b/Doc/reference/datamodel.rst
@@ -405,10 +405,9 @@
       .. index::
          module: dbm.ndbm
          module: dbm.gnu
-         module: bsddb
 
-      The extension modules :mod:`dbm.ndbm`, :mod:`dbm.gnu`, and :mod:`bsddb`
-      provide additional examples of mapping types, as does the :mod:`collections`
+      The extension modules :mod:`dbm.ndbm` and :mod:`dbm.gnu` provide
+      additional examples of mapping types, as does the :mod:`collections`
       module.
 
 Callable types