Reuse old log handler

pkg/logutil/factory.go

@@ -1,7 +1,6 @@
 package logutil
 
 import (
-	"bufio"
 	"bytes"
 	"fmt"
 	"io"
@@ -110,24 +109,10 @@ func (l *Logger) GetLogsFromFile() (string, error) {
 		return "", err
 	}
 	defer file.Close()
-
-	const maxLines = 100000
-	var lines []string
-
-	scanner := bufio.NewScanner(file)
-	for scanner.Scan() {
-		lines = append(lines, scanner.Text())
-		if len(lines) > maxLines {
-			lines = lines[1:]
-		}
-	}
-	if err := scanner.Err(); err != nil {
-		return "", err
-	}
-
 	var buffer bytes.Buffer
-	for _, line := range lines {
-		buffer.WriteString(line + "\n")
+	_, err = io.Copy(&buffer, file)
+	if err != nil {
+		return "", err
 	}
 
 	return buffer.String(), nil