doc/lua: remove reference to removed functions

These have all been replaced by libs and already documented in their
lib format.

Ticket: #7728

doc/userguide/lua/lua-functions.rst

@@ -81,131 +81,6 @@ For detection, use the specific buffer (cf :ref:`lua-detection` for a complete l
       return needs
   end
 
-HttpGetRequestBody and HttpGetResponseBody.
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-Make normalized body data available to the script through
-HttpGetRequestBody and HttpGetResponseBody.
-
-There no guarantees that all of the body will be available.
-
-Example:
-
-::
-
-  function log(args)
-      a, o, e = HttpGetResponseBody();
-      --print("offset " .. o .. " end " .. e)
-      for n, v in ipairs(a) do
-          print(v)
-      end
-  end
-
-HttpGetRequestHost
-~~~~~~~~~~~~~~~~~~
-
-Get the host from libhtp's htp_tx_request_hostname(tx), which can either be
-the host portion of the url or the host portion of the Host header.
-
-Example:
-
-::
-
-  http_host = HttpGetRequestHost()
-  if http_host == nil then
-      http_host = "<hostname unknown>"
-  end
-
-HttpGetRequestHeader
-~~~~~~~~~~~~~~~~~~~~
-
-::
-
-  http_ua = HttpGetRequestHeader("User-Agent")
-  if http_ua == nil then
-      http_ua = "<useragent unknown>"
-  end
-
-HttpGetResponseHeader
-~~~~~~~~~~~~~~~~~~~~~
-
-::
-
-  server = HttpGetResponseHeader("Server");
-  print ("Server: " .. server);
-
-HttpGetRequestLine
-~~~~~~~~~~~~~~~~~~
-
-::
-
-  rl = HttpGetRequestLine();
-  print ("Request Line: " .. rl);
-
-HttpGetResponseLine
-~~~~~~~~~~~~~~~~~~~
-
-::
-
-  rsl = HttpGetResponseLine();
-  print ("Response Line: " .. rsl);
-
-HttpGetRawRequestHeaders
-~~~~~~~~~~~~~~~~~~~~~~~~
-
-::
-
-  rh = HttpGetRawRequestHeaders();
-  print ("Raw Request Headers: " .. rh);
-
-HttpGetRawResponseHeaders
-~~~~~~~~~~~~~~~~~~~~~~~~~
-
-::
-
-  rh = HttpGetRawResponseHeaders();
-  print ("Raw Response Headers: " .. rh);
-
-HttpGetRequestUriRaw
-~~~~~~~~~~~~~~~~~~~~
-
-::
-
-  http_uri = HttpGetRequestUriRaw()
-  if http_uri == nil then
-      http_uri = "<unknown>"
-  end
-
-HttpGetRequestUriNormalized
-~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-::
-
-  http_uri = HttpGetRequestUriNormalized()
-  if http_uri == nil then
-      http_uri = "<unknown>"
-  end
-
-HttpGetRequestHeaders
-~~~~~~~~~~~~~~~~~~~~~
-
-::
-
-  a = HttpGetRequestHeaders();
-  for n, v in pairs(a) do
-      print(n,v)
-  end
-
-HttpGetResponseHeaders
-~~~~~~~~~~~~~~~~~~~~~~
-
-::
-
-  a = HttpGetResponseHeaders();
-  for n, v in pairs(a) do
-      print(n,v)
-  end
-
 Streaming Data
 --------------
 
@@ -249,53 +124,3 @@ function within a ``stream`` subtable::
     -- To client?
     local tc = args["stream"]["toclient"]
   end
-
-Flow variables
---------------
-
-It is possible to access, define and modify Flow variables from Lua. To do so,
-you must use the functions described in this section and declare the counter in
-init function:
-
-::
-
- function init(args)
-     local needs = {}
-     needs["tls"] tostring(true)
-     needs["flowint"] = {"tls-cnt"}
-     return needs
- end
-
-Here we define a `tls-cnt` Flowint that can now be used in output or in a
-signature via dedicated functions. The access to the Flow variable is done by
-index so in our case we need to use 0.
-
-::
-
- function match(args)
-     a = SCFlowintGet(0);
-     if a then
-         SCFlowintSet(0, a + 1)
-     else
-         SCFlowintSet(0, 1)
-     end
-
-SCFlowintGet
-~~~~~~~~~~~~
-
-Get the Flowint at index given by the parameter.
-
-SCFlowintSet
-~~~~~~~~~~~~
-
-Set the Flowint at index given by the first parameter. The second parameter is the value.
-
-SCFlowintIncr
-~~~~~~~~~~~~~
-
-Increment Flowint at index given by the first parameter.
-
-SCFlowintDecr
-~~~~~~~~~~~~~
-
-Decrement Flowint at index given by the first parameter.