[Session] Fix an RST syntax issue

javiereguiluz · javiereguiluz · commit c02b87d31704 · 2023-03-08T15:40:09.000+01:00
diff --git a/session.rst b/session.rst
@@ -1129,9 +1129,6 @@ These are parameters that you can configure:
 ``expiry_field`` (default ``expires_at``):
     The name of the field where to store the session lifetime.
 
-.. index::
-    single: Sessions, saving locale
-
 Migrating Between Session Handlers
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
