Remove flawed Point.Equal function

cluster.go

@@ -26,18 +26,6 @@ func (c Clusters) Nearest(point Point) int {
 	return ci
 }
 
-// removePoint removes a point's assignment to this cluster
-func (c *Cluster) removePoint(p Point) {
-	var pp Points
-	for _, v := range c.Points {
-		if !v.Equal(p) {
-			pp = append(pp, p)
-		}
-	}
-
-	c.Points = pp
-}
-
 // recenter recenters a cluster
 func (c *Cluster) recenter() {
 	center, err := c.Points.Mean()

point.go

@@ -20,17 +20,6 @@ func (p Point) Distance(p2 Point) float64 {
 	return r
 }
 
-// Equal returns true if the two points have equal values
-func (p Point) Equal(p2 Point) bool {
-	for i := range p {
-		if p[i] != p2[i] {
-			return false
-		}
-	}
-
-	return true
-}
-
 // Mean returns the mean point of p
 func (p Points) Mean() (Point, error) {
 	var l = len(p)