Small fix and self review

Author: dlzhry2nhs

backend/src/authorisation/authoriser.py

@@ -7,7 +7,7 @@
 
 
 class Authoriser:
-    """Authoriser class. Used for authorising operations of FHIR vaccinations."""
+    """Authoriser class. Used for authorising operations on FHIR vaccinations."""
     def __init__(self):
         self._cache_client = redis_client
 

backend/src/authorization.py

@@ -9,8 +9,6 @@
 
 from fhir.resources.R4B.bundle import Bundle as FhirBundle, BundleEntry
 from fhir.resources.R4B.immunization import Immunization
-from poetry.console.commands import self
-from werkzeug.exceptions import Unauthorized
 
 from authorisation.api_operation_code import ApiOperationCode
 from authorisation.authoriser import Authoriser