Implement golangci-lint suggestions

internal/ocspsource/ocspsource.go

@@ -40,7 +40,6 @@ type CertificateIssuer struct {
 	responderKey         crypto.Signer
 	caCertificate        *x509.Certificate
 	certDb               *OpenSSLCertDB
-	certificateList      []*x509.Certificate
 }
 
 // NewIssuer is used to construct a new CertificateIssuer instance
@@ -73,7 +72,7 @@ func (i *CertificateIssuer) publicKeyMatches(requestHash []byte, algorithm crypt
 	}
 	issuerHash := h.Sum(nil)
 
-	return bytes.Compare(issuerHash, requestHash) == 0, nil
+	return bytes.Equal(issuerHash, requestHash), nil
 }
 
 // buildUnknownResponse builds the OCSP response template for an unknown certificate

internal/ocspsource/opensslcertdb.go

@@ -67,7 +67,7 @@ func (o *OpenSSLCertDB) update() error {
 		_ = f.Close()
 	}(f)
 
-	newContent := make(map[string]*ocsp.Response, 0)
+	newContent := make(map[string]*ocsp.Response)
 	b := bufio.NewReader(f)
 	lastLine := false
 	for {