deleted function that was moved but accidentally not removed in commit

bitsandbytes/cuda_setup.py

@@ -19,8 +19,6 @@ evaluation:
 """
 
 import ctypes
-import shlex
-import subprocess
 from os import environ as env
 from pathlib import Path
 from typing import Set, Union
@@ -28,26 +26,6 @@ from typing import Set, Union
 from .utils import print_err, warn_of_missing_prerequisite
 
 
-def execute_and_return(command_string: str) -> Tuple[str, str]:
-    def _decode(subprocess_err_out_tuple):
-        return tuple(
-            to_decode.decode("UTF-8").strip()
-            for to_decode in subprocess_err_out_tuple
-        )
-
-    def execute_and_return_decoded_std_streams(command_string):
-        return _decode(
-            subprocess.Popen(
-                shlex.split(command_string),
-                stdout=subprocess.PIPE,
-                stderr=subprocess.PIPE,
-            ).communicate()
-        )
-
-    std_out, std_err = execute_and_return_decoded_std_streams()
-    return std_out, std_err
-
-
 def check_cuda_result(cuda, result_val):
     if result_val != 0:
         # TODO: undefined name 'error_str'