Remove CI scripts

They are now loaded from the ci repo

scripts/ci/appveyor.py

-#!/usr/bin/env python3
-
-import os
-import requests
-
-webhook_key = os.environ['APPVEYOR_WEBHOOK_KEY']
-branch = os.environ['CI_COMMIT_BRANCH']
-
-url = f'https://ci.appveyor.com/api/git/webhook?id={webhook_key}'
-ref = f'refs/heads/{branch}'
-
-with open('appveyor.yml', 'r') as file:
-    yaml = file.read()
-
-payload = {
-    'ref': ref,
-    'repository': {'name': 'Gajim'},
-    'config': yaml
-}
-
-req = requests.post(url, json=payload)
-req.raise_for_status()

scripts/ci/sdist.py

-#!/usr/bin/env python3
-
-import os
-import io
-import zipfile
-import subprocess
-import shutil
-from pathlib import Path
-import requests
-
-PLUGINS = [
-    'plugin_installer',
-]
-
-PLUGINS_BASE_URL = 'https://ftp.gajim.org'
-PLUGINS_FOLDER = Path('./gajim/data/plugins')
-
-COMMIT_BRANCH = os.environ['CI_COMMIT_BRANCH']
-
-
-def get_plugins_folder():
-    if COMMIT_BRANCH == 'master':
-        return 'plugins_master_zip'
-
-    version = COMMIT_BRANCH.split('_')[1]
-    return f'plugins_{version}_zip'
-
-
-def get_plugins_url(plugin):
-    folder = get_plugins_folder()
-    return f'{PLUGINS_BASE_URL}/{folder}/{plugin}.zip'
-
-
-def extraxt_zip(zip_bytes, path):
-    print('Extract to', path)
-    with zipfile.ZipFile(io.BytesIO(zip_bytes)) as zip_file:
-        zip_file.extractall(path)
-
-
-def download_plugins():
-    PLUGINS_FOLDER.mkdir(parents=True)
-    for plugin in PLUGINS:
-        url = get_plugins_url(plugin)
-        print('Download', url)
-        req = requests.get(url)
-        req.raise_for_status()
-        extraxt_zip(req.content, PLUGINS_FOLDER)
-
-
-def setup():
-    print('Setup')
-    subprocess.call(['python3', 'setup.py', 'sdist'])
-
-
-def cleanup():
-    print('Cleanup')
-    shutil.rmtree(PLUGINS_FOLDER)
-
-
-download_plugins()
-setup()
-cleanup()