diff --git a/migration.lua b/migration.lua
deleted file mode 100644
index 0786f53..0000000
--- a/migration.lua
+++ /dev/null
@@ -1,123 +0,0 @@
--- Important: This is only of relevance for the Server YourLand -
---            which was running an older version of this mod and nees
---            adjustments for the newer version.
----
--- Rename this file to
--- 	local_server_do_on_reload.lua
--- and execute
--- 	/npc_talk_migrate
--- in order to automaticly add the necessary privs for all existing old NPC.
---
--- NPC dialogs are checked and reported if broken.
-
-yl_speak_up.migration_npc_needs_priv = function(n_id, pname, counter, priv_name)
-	if(counter < 1) then
-		return
-	end
-	-- does the NPC have the priv already?
-	if(yl_speak_up.npc_has_priv(n_id, priv_name, nil)) then
-		minetest.chat_send_player(pname, "      OK: "..tostring(n_id).." has priv "..priv_name)
-		return
-	end
-	-- grant the NPC the priv
-	minetest.chat_send_player(pname, "      GRANTING "..tostring(n_id).." priv "..priv_name)
-	if(not(yl_speak_up.npc_priv_table[n_id])) then
-		yl_speak_up.npc_priv_table[n_id] = {}
-	end
-	yl_speak_up.npc_priv_table[n_id][priv_name] = true
-end
-
-
-yl_speak_up.check_one_npc_for_migration = function(dialog, pname, n_id)
-	-- nothing defined yet - nothing to repair
-	if(not(dialog.n_dialogs)) then
-		minetest.chat_send_player(pname, "    NPC "..tostring(n_id).." has nothing to say.")
-		return
-	end
-	local c_effect_exec_lua = 0
-	local c_effect_give_item = 0
-	local c_effect_take_item = 0
-	local c_effect_move_player = 0
-	local c_precon_exec_lua = 0
-	-- iterate over all dialogs
-	for d_id, d in pairs(dialog.n_dialogs) do
-		if(d_id and d and d.d_options) then
-			-- iterate over all options
-			for o_id, o in pairs(d.d_options) do
-				if(o_id and o and o.o_results) then
-					local dialog_results = {}
-					-- iterate over all results
-					for r_id, r in pairs(o.o_results) do
-						if(r.r_type == "dialog") then
-							table.insert(dialog_results, r_id)
-						elseif(r.r_type == "function") then
-							c_effect_exec_lua    = c_effect_exec_lua + 1
-						elseif(r.r_type == "move") then
-							c_effect_move_player = c_effect_move_player + 1
-						elseif(r.r_type == "give_item") then
-							c_effect_give_item   = c_effect_give_item + 1
-						elseif(r.r_type == "take_item") then
-							c_effect_take_item   = c_effect_take_item + 1
-						end
-					end
-					if(#dialog_results>1) then
-						local msg = "ERROR: Dialog "..
-							tostring(d_id)..", option "..tostring(o_id)..
-							", has multiple results of type dialog: "..
-							minetest.serialize(dialog_results)..". Please "..
-							"let someone with npc_master priv fix that first!"
-						yl_speak_up.log_change(pname, n_id, msg, "error")
-						if(pname) then
-							minetest.chat_send_player(pname, msg)
-						end
-					end
-				end
-				if(o_id and o and o.o_prerequisites) then
-					for p_id, p in pairs(o.o_prerequisites) do
-						if(p.p_type == "function") then
-							c_precon_exec_lua    = c_precon_exec_lua + 1
-						end
-					end
-				end
-			end
-		end
-	end
-	yl_speak_up.migration_npc_needs_priv(n_id, pname, c_effect_exec_lua, "effect_exec_lua")
-	yl_speak_up.migration_npc_needs_priv(n_id, pname, c_effect_give_item, "effect_give_item")
-	yl_speak_up.migration_npc_needs_priv(n_id, pname, c_effect_take_item, "effect_take_item")
-	yl_speak_up.migration_npc_needs_priv(n_id, pname, c_effect_move_player, "effect_move_player")
-	yl_speak_up.migration_npc_needs_priv(n_id, pname, c_precon_exec_lua, "precon_exec_lua")
-end
-
-
-yl_speak_up.check_all_npc_for_migration = function(pname)
-	local path = yl_speak_up.worldpath..yl_speak_up.path.."/"
-	local file_names = minetest.get_dir_list(path, false)
-	minetest.chat_send_player(pname, "There are "..tostring(#file_names).." NPCs with stored dialogs "..
-		"in folder "..path..".")
-	for i, fname in ipairs(file_names) do
-		local file, err = io.open(path..fname, "r")
-		io.input(file)
-		local content = io.read()
-		local dialog = minetest.parse_json(content)
-		io.close(file)
-		if type(dialog) ~= "table" then
-			dialog = {}
-		end
-		minetest.chat_send_player(pname, "  Checking NPC "..tostring(fname).."...")
-		yl_speak_up.check_one_npc_for_migration(dialog, pname, string.sub(fname, 0, -6)) 
-	end
-	minetest.chat_send_player(pname, "Done with checking all NPC files for migration.")
-	-- store the changed privs
-	yl_speak_up.npc_privs_store()
-	return true
-end
-
-
-minetest.register_chatcommand( 'npc_talk_migrate', {
-        description = "Checks NPC from old yl_speak_up for migration to new version of the mod.",
-        privs = {npc_master = true},
-        func = function(pname, param)
-		return yl_speak_up.check_all_npc_for_migration(pname)
-	end
-})