Merge pull request #87 from fystack/fix-lint-issue

Fix lint issue

Author: anhthii

pkg/identity/identity.go

@@ -2,7 +2,6 @@ package identity
 
 import (
 	"crypto/ed25519"
-	"crypto/rand"
 	"encoding/hex"
 	"encoding/json"
 	"errors"
@@ -295,14 +294,6 @@ func (s *fileStore) VerifyMessage(msg *types.TssMessage) error {
 	return nil
 }
 
-func generateRandom(nonceSize int) ([]byte, error) {
-	nonce := make([]byte, nonceSize)
-	if _, err := rand.Read(nonce); err != nil {
-		return nil, err
-	}
-	return nonce, nil
-}
-
 func (s *fileStore) EncryptMessage(plaintext []byte, peerID string) ([]byte, error) {
 	key, err := s.GetSymmetricKey(peerID)
 	if err != nil {