move CreateAddress from ethutil/common to ethcrypto

ethcrypto/crypto.go

@@ -25,3 +25,10 @@ func Sha3Bin(data []byte) []byte {
 
 	return d.Sum(nil)
 }
+
+// Creates an ethereum address given the bytes and the nonce
+func CreateAddress(b []byte, nonce *big.Int) []byte {
+	addrBytes := append(b, nonce.Bytes()...)
+
+	return Sha3Bin(addrBytes)[12:]
+}

ethutil/common.go

@@ -52,10 +52,3 @@ var (
 	Big32  = big.NewInt(32)
 	Big256 = big.NewInt(0xff)
 )
-
-// Creates an ethereum address given the bytes and the nonce
-func CreateAddress(b []byte, nonce *big.Int) []byte {
-	addrBytes := append(b, nonce.Bytes()...)
-
-	return Sha3Bin(addrBytes)[12:]
-}