DOC/CLEANUP: lua-api: removing duplicate date functions doc
As reported by Thierry, core.asctime_date() and core.rfc850() were
both documented multiple times in lua-api doc.
This does not need to be backported.
diff --git a/doc/lua-api/index.rst b/doc/lua-api/index.rst
index 847ab52..2f73f35 100644
--- a/doc/lua-api/index.rst
+++ b/doc/lua-api/index.rst
@@ -460,24 +460,6 @@
Sun Nov 6 08:49:37 1994
..
-.. js:function:: core.rfc850_date(date)
-
- **context**: body, init, task, action
-
- This function take a string representing http date, and returns an integer
- containing the corresponding date with a epoch format.
-
- :param string date: a date http-date formatted
-
-.. js:function:: core.asctime_date(date)
-
- **context**: body, init, task, action
-
- This function take a string representing http date, and returns an integer
- containing the corresponding date with a epoch format.
-
- :param string date: a date http-date formatted
-
.. js:function:: core.msleep(milliseconds)
**context**: body, init, task, action