DOC: Remove done TODO

src/caosdb/exceptions.py

@@ -63,9 +63,6 @@ class ConfigurationError(CaosDBException):
     _INFO = ("\n\nPlease check your ~/.pycaosdb.ini and your $PWD/"
              ".pycaosdb.ini. Do at least one of them exist and are they correct?")
 
-# TODO: Group the following errors (until TransactionError) according
-# to their HTTP codes as children of client/server exception.
-
 
 class HTTPClientError(CaosDBException):
     """HTTPClientError represents 4xx HTTP client errors."""