diff --git a/pyproject.toml b/pyproject.toml
index 7874d25..84c44c1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,7 +29,6 @@ documentation="https://www.linux-automation.com/usbsdmux-M01/"
 [project.scripts]
 usbsdmux = "usbsdmux.__main__:main"
 usbsdmux-configure = "usbsdmux.usb2642eeprom:main"
-usbsdmux-service = "usbsdmux.service:main"
 
 [tool.setuptools]
 packages = [
diff --git a/usbsdmux/__main__.py b/usbsdmux/__main__.py
index a3ab5af..72dab41 100755
--- a/usbsdmux/__main__.py
+++ b/usbsdmux/__main__.py
@@ -54,26 +54,8 @@ def main():
 
     subparsers.add_parser("info", help="Show information about the SD card")
 
-    # These arguments were previously used for the client/service
-    # based method to grant USB-SD-Mux access to non-root users.
-    # The client/service model is no longer needed due to new udev
-    # rules and a change to how the /dev/sg* devices are accessed.
-    # Display a warning but do not fail when these are used so
-    # existing scripts do not break and can be upgraded gracefully.
-    parser.add_argument("-d", "--direct", help=argparse.SUPPRESS, action="store_true", default=None)
-    parser.add_argument("-c", "--client", help=argparse.SUPPRESS, action="store_true", default=None)
-    parser.add_argument("-s", "--socket", help=argparse.SUPPRESS, default=None)
-
     args = parser.parse_args()
 
-    if any(arg is not None for arg in (args.direct, args.client, args.socket)):
-        print(
-            "usbsdmux: usage of -s/-c/-d arguments is deprecated "
-            "as the service/client split is no longer required. "
-            "Please upgrade your scripts to not supply either of these arguments",
-            file=sys.stderr,
-        )
-
     config = Config(args.config)
 
     try:
diff --git a/usbsdmux/service.py b/usbsdmux/service.py
deleted file mode 100644
index 8357f1c..0000000
--- a/usbsdmux/service.py
+++ /dev/null
@@ -1,39 +0,0 @@
-#! /usr/bin/env python3
-
-# SPDX-License-Identifier: LGPL-2.1-or-later
-
-# Copyright (C) 2021 Pengutronix, Leonard Göhrs <entwicklung@pengutronix.de>
-#
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation; either
-# version 2.1 of the License, or (at your option) any later version.
-#
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
-
-"""
-This service was intended as systemd-socket-activated unit and provided an
-interface to the USB-SD-Mux without the need for root privileges.
-
-Usage of this service became obsolete in new releases that changed the
-way the /dev/sg* devices are accessed and that added new udev rules to
-directly grant device access to the users.
-
-This file is kept here to notify users that have set up a systemd service.
-"""
-
-import sys
-
-
-def main():
-    print("The usage of usbsdmux-service is deprecated.", file=sys.stderr)
-    print("Access to USB-SD-Mux devices is now controlled by a new set of udev rules.", file=sys.stderr)
-    print("Please delete/deactivate the service calling this command.", file=sys.stderr)
-    exit(-1)