Revert detection code

import platform

import argparse

import json

import detection

dir_repos = "repositories"

dir_extensions = "extensions"

index_url = os.environ.get('INDEX_URL', "")

stored_commit_hash = None

# Get the GPU vendor and the operating system

gpu = detection.check_gpu()

if os.name == "posix":

    os_name = platform.uname().system

else:

    os_name = os.name

def commit_hash():

    global stored_commit_hash

def prepare_environment():

    if gpu == "AMD" and os_name !="nt":

        torch_command = os.environ.get('TORCH_COMMAND', "pip install torch torchvision --extra-index-url https://download.pytorch.org/whl/rocm5.2")

    else:

    torch_command = os.environ.get('TORCH_COMMAND', "pip install torch==1.12.1+cu113 torchvision==0.13.1+cu113 --extra-index-url https://download.pytorch.org/whl/cu113")

    requirements_file = os.environ.get('REQS_FILE', "requirements_versions.txt")

    commandline_args = os.environ.get('COMMANDLINE_ARGS', "")

def start():

    print(f"Operating System: {os_name}")

    print(f"GPU: {gpu}")

    print(f"Launching {'API server' if '--nowebui' in sys.argv else 'Web UI'} with arguments: {' '.join(sys.argv[1:])}")

    import webui

    if '--nowebui' in sys.argv: