* and stop setting default values in python operator code, so defaults can be set at the server side.

This issue is just for the PR and questions from maintainers. 
setup.py
"""Adds extras for all additional extras."""
    for extra_name, extra_requirement in ADDITIONAL_EXTRAS_REQUIREMENTS.items():
        EXTRAS_REQUIREMENTS[extra_name] = extra_requirement
add_extras_for_all_providers()
add_additional_extras()
EXTRAS_DEPRECATED_ALIASES: Dict[str, str] = {
    'atlas': 'apache.atlas',
    'aws': 'amazon',
    'azure': 'microsoft.azure',
    'cassandra': 'apache.cassandra',
    'crypto': '',  
    'druid': 'apache.druid',
    'gcp': 'google',
    'gcp_api': 'google',
    'hdfs': 'apache.hdfs',
    'hive': 'apache.hive',
    'kubernetes': 'cncf.kubernetes',
    'mssql': 'microsoft.mssql',
    'pinot': 'apache.pinot',
    'qds': 'qubole',
    's3': 'amazon',
    'spark': 'apache.spark',
    'webhdfs': 'apache.webhdfs',
    'winrm': 'microsoft.winrm',
}
EXTRAS_DEPRECATED_ALIASES_NOT_PROVIDERS: List[str] = [
    "crypto",
    "webhdfs",
]
def add_extras_for_all_deprecated_aliases() -> None: