diff --git a/aoc/src/dev/ctsk/aoc/Util.scala b/aoc/src/dev/ctsk/aoc/Util.scala
deleted file mode 100644
index a1c25c4..0000000
--- a/aoc/src/dev/ctsk/aoc/Util.scala
+++ /dev/null
@@ -1,6 +0,0 @@
-package dev.ctsk.aoc
-
-def NAT_REGEX = """(\d+)""".r
-
-def longs(string: String): Vector[Long] =
-  NAT_REGEX.findAllIn(string).map(_.toLong).toVector