diff --git a/reserver/util.py b/reserver/util.py
index 73ad294..9d8211f 100644
--- a/reserver/util.py
+++ b/reserver/util.py
@@ -1,20 +1,10 @@
 # -*- coding: utf-8 -*-
 """Utility functions."""
 
-from platform import system
 from hashlib import sha256
 from time import time
 
 
-def is_platform_linux():
-    """
-    Check whether current platform is linux or not.
-
-    :return: bool
-    """
-    return system() == "Linux"
-
-
 def get_random_name():
     """
     Generate a random str based on current timestamp.