remove obsolete code

.github/workflows/main.yml

@@ -1,2 +1,2 @@
 - name: Go Release Binary
- uses: ngs/[email protected].2
+ uses: ngs/[email protected].3

main.go

@@ -13,7 +13,6 @@ import (
  "encoding/pem"
  "flag"
  "fmt"
- "io/ioutil"
  "log"
  "math"
  "math/big"
@@ -37,8 +36,8 @@ type issuer struct {
 }
 
 func getIssuer(keyFile, certFile string) (*issuer, error) {
- keyContents, keyErr := ioutil.ReadFile(keyFile)
- certContents, certErr := ioutil.ReadFile(certFile)
+ keyContents, keyErr := os.ReadFile(keyFile)
+ certContents, certErr := os.ReadFile(certFile)
  if os.IsNotExist(keyErr) && os.IsNotExist(certErr) {
  err := makeIssuer(keyFile, certFile)
  if err != nil {
@@ -108,9 +107,6 @@ func makeKey(filename string) (*rsa.PrivateKey, error) {
  return nil, err
  }
  der := x509.MarshalPKCS1PrivateKey(key)
- if err != nil {
- return nil, err
- }
  file, err := os.OpenFile(filename, os.O_CREATE|os.O_EXCL|os.O_WRONLY, 0600)
  if err != nil {
  return nil, err
@@ -192,7 +188,7 @@ func publicKeysEqual(a, b interface{}) (bool, error) {
  if err != nil {
  return false, err
  }
- return bytes.Compare(aBytes, bBytes) == 0, nil
+ return bytes.Equal(aBytes, bBytes), nil
 }
 
 func calculateSKID(pubKey crypto.PublicKey) ([]byte, error) {