map convience functions (refactor)

sys/apis/util.lua

@@ -187,20 +187,6 @@ function Util.deepMerge(obj, args)
 	end
 end
 
--- remove table entries if passed function returns false
-function Util.prune(t, fn)
-	for _,k in pairs(Util.keys(t)) do
-		local v = t[k]
-		if type(v) == 'table' then
-			t[k] = Util.prune(v, fn)
-		end
-		if not fn(t[k]) then
-			t[k] = nil
-		end
-	end
-	return t
-end
-
 function Util.transpose(t)
 	local tt = { }
 	for k,v in pairs(t) do