[Change Request] Remove unused OMOP code

[frankcorneliusmartin]

Description
There are a few sections that should be removed now that we have the OMOP decorator (for connection):

vantage6/vantage6-algorithm-tools/vantage6/algorithm/tools/wrappers.py

Lines 46 to 47 in 2da5230

	OMOP : str
	OMOP database

https://github.com/vantage6/vantage6/blob/2da5230e5895a1d23a01a311243dbb3240e912fc/vantage6-algorithm-tools/vantage6/algorithm/tools/wrappers.py#54

vantage6/vantage6-algorithm-tools/vantage6/algorithm/tools/wrappers.py

Lines 161 to 162 in 2da5230

	elif database_type == "omop":
	return load_omop_data

vantage6/vantage6-algorithm-tools/vantage6/algorithm/tools/wrappers.py

Lines 273 to 290 in 2da5230

	def load_omop_data(database_uri: str, query: str) -> pd.DataFrame:
	"""
	Load the local privacy-sensitive data from the database.
	Parameters
	----------
	database_uri : str
	URI of the OMOP database, supplied by te node
	query: str
	Query to retrieve the data from the database
	Returns
	-------
	pd.DataFrame
	The data from the database
	"""
	# TODO: replace query by OMOP json and convert to SQL
	return pd.read_sql(database_uri, query)