Remove h2 from NextProtos since it doesn't work (#6705)

cmd/http/listener_test.go

@@ -116,7 +116,7 @@ func getTLSConfig(t *testing.T) *tls.Config {
 	tlsConfig := &tls.Config{
 		PreferServerCipherSuites: true,
 		MinVersion:               tls.VersionTLS12,
-		NextProtos:               []string{"http/1.1", "h2"},
+		NextProtos:               []string{"http/1.1"},
 	}
 	tlsConfig.Certificates = append(tlsConfig.Certificates, tlsCert)
 

cmd/http/server.go

@@ -192,7 +192,7 @@ func NewServer(addrs []string, handler http.Handler, getCert certs.GetCertificat
 			CipherSuites:             defaultCipherSuites,
 			CurvePreferences:         secureCurves,
 			MinVersion:               tls.VersionTLS12,
-			NextProtos:               []string{"http/1.1", "h2"},
+			NextProtos:               []string{"http/1.1"},
 		}
 		tlsConfig.GetCertificate = getCert
 	}