diff --git a/ansi/zone.go b/ansi/zone.go
deleted file mode 100644
index 08cd73d6..00000000
--- a/ansi/zone.go
+++ /dev/null
@@ -1,10 +0,0 @@
-package ansi
-
-import "strconv"
-
-// SetZone returns a sequence for setting the zone id of a cell.
-//
-// See: /~https://github.com/lrstanley/bubblezone
-func SetZone(zone int) string {
-	return "\x1b[" + strconv.Itoa(zone) + "z"
-}