fix ref to c data info

sim/gencfuncs.lua

@@ -18,15 +18,13 @@ GateFunc sim_logic_functions[] = {
 local lua_code = [[
 -- Auto-generated by gencfuncs.lua
 
-local cFuncsByName = {
+cFuncsByName = {
 %s
 }
 
-local cDataSizeByName = {
+cDataSizeByName = {
 %s
 }
-
-return cFuncsByName, cDataSizeByName
 ]]
 local function writeFile(fn, data)
 	local f = io.open(fn, "wb") or error("Could not open file for writing: "..fn)