fix(backend, logger): remove unused function and imports

Author: JavierRibaldelRio

backend/pkg/logger/base/logger_test.go

@@ -2,8 +2,7 @@ package loggerbase
 
 import (
 	"os"
-	"path/filepath"
-	"strings"
+
 	"testing"
 )
 
@@ -30,11 +29,6 @@ func chdirTemp(t *testing.T) string {
 	return tmp
 }
 
-func splitPath(p string) []string {
-	p = filepath.Clean(p)
-	return strings.Split(p, string(os.PathSeparator))
-}
-
 /*******
 * Start *
 *******/