diff --git a/src/net/parse.go b/src/net/parse.go
index fbc50144c2..22c6123243 100644
--- a/src/net/parse.go
+++ b/src/net/parse.go
@@ -180,20 +180,6 @@ func xtoi2(s string, e byte) (byte, bool) {
 	return byte(n), ok && ei == 2
 }
 
-// Convert i to a hexadecimal string. Leading zeros are not printed.
-func appendHex(dst []byte, i uint32) []byte {
-	if i == 0 {
-		return append(dst, '0')
-	}
-	for j := 7; j >= 0; j-- {
-		v := i >> uint(j*4)
-		if v > 0 {
-			dst = append(dst, hexDigit[v&0xf])
-		}
-	}
-	return dst
-}
-
 // Number of occurrences of b in s.
 func count(s string, b byte) int {
 	n := 0