Remove node_ownership support, cleanup (#560)

.github/workflows/check-release.yml

@@ -8,4 +8,4 @@ jobs:
       - name: lint
         uses: Roang-zero1/factorio-mod-luacheck@master
         with:
-          luacheckrc_url: https://raw.githubusercontent.com/minetest-mods/technic/master/.luacheckrc
+          luacheckrc_url: ""

technic/machines/MV/lighting.lua

@@ -14,20 +14,7 @@ end
 
 function technic_homedecor_node_is_owned(pos, placer)
         local ownername = false
-        if type(IsPlayerNodeOwner) == "function" then -- node_ownership mod
-                if HasOwner(pos, placer) then
-                        if not IsPlayerNodeOwner(pos, placer:get_player_name()) then
-                                if type(getLastOwner) == "function" then -- ...is an old version
-                                        ownername = getLastOwner(pos)
-                                elseif type(GetNodeOwnerName) == "function" then -- ...is a recent version
-                                        ownername = GetNodeOwnerName(pos)
-                                else
-                                        ownername = S("someone")
-                                end
-                        end
-                end
-
-        elseif type(isprotect) == "function" then -- glomie's protection mod
+        if type(isprotect) == "function" then -- glomie's protection mod
                 if not isprotect(5, pos, placer) then
                         ownername = S("someone")
                 end