Remove world:target debug error (#137)

* Removed error about needing `index` in `world:target`

* The `index` parameter was made optional in #131

* Re-added `world.target` wrapper

* Remove world.target and world.remove wrappers

---------

Co-authored-by: EncodedVenom <32179912+EncodedVenom@users.noreply.github.com>

src/init.luau

@@ -1709,21 +1709,6 @@ if _G.__JECS_DEBUG then
 
 		return world_get(world, entity, ...)
 	end
-
-	World.target = function(world, entity, relation, index)
-		if index == nil then
-			local _1 = get_name(world, entity)
-			local _2 = get_name(world, relation)
-
-			throw(
-				"We have changed the function call to require an index parameter,"
-					.. ` please use world:target({_1}, {_2}, 0)`
-			)
-		end
-		return world_target(world, entity, relation, index)
-	end
-
-	World.remove = function() end
 end
 
 function World.new()