Revert "use default logger for android and ios"

This reverts commit 9743380e2d.

app/log/log.go

@@ -4,7 +4,6 @@ package log
 
 import (
 	"context"
-	"runtime"
 	"sync"
 
 	"v2ray.com/core/common"
@@ -31,18 +30,6 @@ func New(ctx context.Context, config *Config) (*Instance, error) {
 	return g, nil
 }
 
-func isMobile() bool {
-	return runtime.GOOS == "android" || (runtime.GOOS == "darwin" && (runtime.GOARCH == "arm" || runtime.GOARCH == "arm64"))
-}
-
-func createStdLogWriter() log.WriterCreator {
-	if isMobile() {
-		return log.CreateDefaultLogWriter()
-	}
-
-	return log.CreateStdoutLogWriter()
-}
-
 func (g *Instance) initAccessLogger() error {
 	switch g.config.AccessLogType {
 	case LogType_File:
@@ -52,7 +39,7 @@ func (g *Instance) initAccessLogger() error {
 		}
 		g.accessLogger = log.NewLogger(creator)
 	case LogType_Console:
-		g.accessLogger = log.NewLogger(createStdLogWriter())
+		g.accessLogger = log.NewLogger(log.CreateStdoutLogWriter())
 	default:
 	}
 	return nil
@@ -67,7 +54,7 @@ func (g *Instance) initErrorLogger() error {
 		}
 		g.errorLogger = log.NewLogger(creator)
 	case LogType_Console:
-		g.errorLogger = log.NewLogger(createStdLogWriter())
+		g.errorLogger = log.NewLogger(log.CreateStdoutLogWriter())
 	default:
 	}
 	return nil

common/log/logger.go

@@ -119,22 +119,6 @@ func CreateStdoutLogWriter() WriterCreator {
 	}
 }
 
-type defaultLogWriter struct{}
-
-func (defaultLogWriter) Write(b []byte) (int, error) {
-	log.Print(string(b))
-	return len(b), nil
-}
-
-// CreateDefaultLogWriter returns a LogWriterCreator that creates LogWriter to write to default Golang logger.
-func CreateDefaultLogWriter() WriterCreator {
-	return func() Writer {
-		return &consoleLogWriter{
-			logger: log.New(defaultLogWriter{}, "", log.Ldate|log.Ltime),
-		}
-	}
-}
-
 // CreateFileLogWriter returns a LogWriterCreator that creates LogWriter for the given file.
 func CreateFileLogWriter(path string) (WriterCreator, error) {
 	file, err := os.OpenFile(path, os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0600)