Remove excessive code

This removes a piece of excessive code, which I accidentally left behind.

mods/ITEMS/mcl_core/functions.lua

@@ -1511,7 +1511,7 @@ end
 --
 -- The snowable nodes also MUST have _mcl_snowed defined to contain the name
 -- of the snowed node.
-function mcl_core.register_snowed_node(itemstring_snowed, itemstring_clear, tiles, sounds, clear_colorization, desc)
+function mcl_core.register_snowed_node(itemstring_snowed, itemstring_clear, tiles, sounds, clear_colorization, desc, grass_palette)
 	local def = table.copy(minetest.registered_nodes[itemstring_clear])
 	local create_doc_alias
 	if def.description then
@@ -1525,6 +1525,7 @@ function mcl_core.register_snowed_node(itemstring_snowed, itemstring_clear, tile
 	def._doc_items_usagehelp = nil
 	def._doc_items_create_entry = false
 	def.groups.not_in_creative_inventory = 1
+	def.groups.grass_palette = grass_palette
 	if def.groups.grass_block == 1 then
 		def.groups.grass_block_no_snow = nil
 		def.groups.grass_block_snow = 1

mods/ITEMS/mcl_core/nodes_base.lua

@@ -380,7 +380,7 @@ minetest.register_node("mcl_core:dirt_with_grass", {
 		handy = 1, shovely = 1, dirt = 2, grass_block = 1, grass_block_no_snow = 1,
 		soil = 1, soil_sapling = 2, soil_sugarcane = 1, cultivatable = 2,
 		spreading_dirt_type = 1, enderman_takable = 1, building_block = 1,
-		compostability = 30, path_creation_possible=1
+		compostability = 30, path_creation_possible = 1, grass_palette = 1
 	},
 	drop = "mcl_core:dirt",
 	sounds = mcl_sounds.node_sound_dirt_defaults({
@@ -401,7 +401,7 @@ minetest.register_node("mcl_core:dirt_with_grass", {
 	_mcl_hardness = 0.6,
 	_mcl_silk_touch_drop = true,
 })
-mcl_core.register_snowed_node("mcl_core:dirt_with_grass_snow", "mcl_core:dirt_with_grass", nil, nil, true, S("Dirt with Snow"))
+mcl_core.register_snowed_node("mcl_core:dirt_with_grass_snow", "mcl_core:dirt_with_grass", nil, nil, true, S("Dirt with Snow"), 1)
 
 minetest.register_node("mcl_core:grass_path", {
 	tiles = {"mcl_core_grass_path_top.png", "default_dirt.png", "mcl_core_grass_path_side.png"},

mods/ITEMS/mcl_core/nodes_cactuscane.lua

@@ -84,7 +84,7 @@ minetest.register_node("mcl_core:reeds", {
 	stack_max = 64,
 	groups = {
 		dig_immediate = 3, craftitem = 1, deco_block = 1, dig_by_piston = 1,
-		plant = 1, non_mycelium_plant = 1, compostability = 50
+		plant = 1, non_mycelium_plant = 1, compostability = 50, grass_palette = 1
 	},
 	sounds = mcl_sounds.node_sound_leaves_defaults(),
 	node_placement_prediction = "",

mods/ITEMS/mcl_flowerpots/init.lua

@@ -75,11 +75,13 @@ function mcl_flowerpots.register_potted_flower(name, def)
 		use_texture_alpha = "clip",
 		visual_scale = 0.5,
 		paramtype = "light",
+		paramtype2 = def.paramtype2,
+		palette = def.palette,
 		sunlight_propagates = true,
 		selection_box = pot_box,
 		collision_box = pot_box,
 		is_ground_content = false,
-		groups = { dig_immediate = 3, attached_node = 1, dig_by_piston = 1, not_in_creative_inventory = 1, flower_pot = 2 },
+		groups = { dig_immediate = 3, attached_node = 1, dig_by_piston = 1, not_in_creative_inventory = 1, flower_pot = 2, grass_palette = def.grass_palette_group },
 		sounds = mcl_sounds.node_sound_stone_defaults(),
 		on_rightclick = function(pos, item, clicker)
 			local player_name = clicker:get_player_name()

mods/ITEMS/mcl_flowers/init.lua

@@ -156,7 +156,7 @@ local def_tallgrass = {
 		handy = 1, shearsy = 1, attached_node = 1, deco_block = 1,
 		plant = 1, place_flowerlike = 2, non_mycelium_plant = 1,
 		flammable = 3, fire_encouragement = 60, fire_flammability = 100,
-		dig_by_water = 1, destroy_by_lava_flow = 1, compostability = 30
+		dig_by_water = 1, destroy_by_lava_flow = 1, compostability = 30, grass_palette = 1
 	},
 	sounds = mcl_sounds.node_sound_leaves_defaults(),
 	drop = wheat_seed_drop,
@@ -190,6 +190,7 @@ if has_mcl_flowerpots then
 		name = "fern",
 		desc = S("Fern"),
 		image = "mcl_flowers_fern_inv.png",
+		grass_palette_group = 1
 	})
 end
 
@@ -206,7 +207,7 @@ local function add_large_plant(name, desc, longdesc, bottom_img, top_img, inv_im
 		attached_node = 1, deco_block = 1,
 		dig_by_water = 1, destroy_by_lava_flow = 1, dig_by_piston = 1,
 		flammable = 2, fire_encouragement = 60, fire_flammability = 100,
-		plant = 1, double_plant = 1, non_mycelium_plant = 1, compostability = 65
+		plant = 1, double_plant = 1, non_mycelium_plant = 1, compostability = 65, grass_palette = nil
 	}
 	if name == "double_grass" then
 		bottom_groups.compostability = 50
@@ -223,6 +224,7 @@ local function add_large_plant(name, desc, longdesc, bottom_img, top_img, inv_im
 	if grass_color then
 		paramtype2 = "color"
 		palette = "mcl_core_palette_grass.png"
+		bottom_groups.grass_palette = 1
 	end
 	if longdesc == nil then
 		bottom_groups.not_in_creative_inventory = 1

mods/MAPGEN/mcl_mapgen_core/init.lua

@@ -345,15 +345,13 @@ local function world_structure(vm, data, data2, emin, emax, area, minp, maxp, bl
 	return lvm_used, lvm_used, deco, ores
 end
 
-local affected_grass_blocks = {"mcl_core:dirt_with_grass", "mcl_flowers:tallgrass", "mcl_flowers:double_grass", "mcl_flowers:double_grass_top", "mcl_flowers:fern", "mcl_flowers:double_fern", "mcl_flowers:double_fern_top", "mcl_core:reeds", "mcl_core:dirt_with_grass_snow"}
-
 local function block_fixes_grass(vm, data, data2, emin, emax, area, minp, maxp, blockseed)
 	local biomemap = minetest.get_mapgen_object("biomemap")
 	local lvm_used = false
 	local pr = PseudoRandom(blockseed)
 	if minp.y <= mcl_vars.mg_overworld_max and maxp.y >= mcl_vars.mg_overworld_min then
 		-- Set param2 (=color) of nodes which use the grass colour palette.
-		lvm_used = set_grass_palette(minp,maxp,data2,area,biomemap,affected_grass_blocks)
+		lvm_used = set_grass_palette(minp,maxp,data2,area,biomemap,{"group:grass_palette"})
 	end
 	return lvm_used
 end
@@ -424,7 +422,7 @@ end, 100, true)
 minetest.register_lbm({
 	label = "Fix grass palette indexes", -- This LBM fixes any incorrect grass palette indexes.
 	name = "mcl_mapgen_core:fix_grass_palette_indexes",
-	nodenames = affected_grass_blocks,
+	nodenames = {"group:grass_palette"},
 	run_at_every_load = false,
 	action = function(pos, node)
 		local grass_palette_index = mcl_util.get_palette_indexes_from_pos(pos).grass_palette_index