diff --git a/geom.go b/geom.go
index cce2b35..b8be0fd 100644
--- a/geom.go
+++ b/geom.go
@@ -4,8 +4,6 @@ import (
 	v "bitbucket.org/hackerbots/vector"
 )
 
-const threshold = 1e-7
-
 func distance(p1, p2 v.Point2d) float64 {
 	return p1.Sub(p2).Mag()
 }