diff --git a/cvat-sdk/cvat_sdk/core/schema.py b/cvat-sdk/cvat_sdk/core/schema.py
deleted file mode 100644
index fb6ebf1b..00000000
--- a/cvat-sdk/cvat_sdk/core/schema.py
+++ /dev/null
@@ -1,28 +0,0 @@
-# Copyright (C) 2022 CVAT.ai Corporation
-#
-# SPDX-License-Identifier: MIT
-
-
-from typing import Optional
-
-import requests
-
-
-def detect_schema(url: str) -> Optional[str]:
-    """
-    Attempts to detect URL schema (http or https) if none provided in the URL.
-    """
-
-    if url.startswith("http://") or url.startswith("https://"):
-        return url
-
-    for schema in ["https://", "http://"]:
-        try:
-            v = schema + url
-            response = requests.request("GET", v)
-            response.raise_for_status()
-            return v
-        except requests.HTTPError:
-            pass
-
-    return None