diff --git a/numba_cuda/numba/cuda/cudadrv/rtapi.py b/numba_cuda/numba/cuda/cudadrv/rtapi.py
deleted file mode 100644
index e95cfabf3..000000000
--- a/numba_cuda/numba/cuda/cudadrv/rtapi.py
+++ /dev/null
@@ -1,13 +0,0 @@
-# SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
-# SPDX-License-Identifier: BSD-2-Clause
-
-"""
-Declarations of the Runtime API functions.
-"""
-
-from ctypes import c_int, POINTER
-
-API_PROTOTYPES = {
-    # cudaError_t cudaRuntimeGetVersion ( int* runtimeVersion )
-    "cudaRuntimeGetVersion": (c_int, POINTER(c_int)),
-}