remove lapis (added to mod itself)

mod.conf

@@ -1,4 +1,4 @@
 name = stairs
 description = Adds stairs, slabs, inner and outer corners and slopes.
-optional_depends = default, homedecor_roofing, lapis, mobs_animal
+optional_depends = default, homedecor_roofing, mobs_animal
 min_minetest_version = 5.0

stairs.lua

@@ -452,29 +452,6 @@ if minetest.get_modpath("mobs_animal") then
 		nil)
 end
 
--- Lapis mod
-
-if minetest.get_modpath("lapis") then
-
-	stairs.register_all("lapis_block", "lapis:lapis_block",
-		{cracky = 3},
-		{"lapis_block_side.png"},
-		"Lapis",
-		nil)
-
-	stairs.register_all("lapis_brick", "lapis:lapis_brick",
-		{cracky = 3},
-		{"lapis_brick.png"},
-		"Lapis Brick",
-		nil)
-
-	stairs.register_all("lapis_cobble", "lapis:lapis_cobble",
-		{cracky = 3},
-		{"lapis_cobble.png"},
-		"Lapis Cobble",
-		nil)
-end
-
 -- Homedecor mod
 
 if minetest.get_modpath("homedecor_roofing") then