test(#4986): drop unused imports (ruff F401)

tests/test_issue4836_manual_compression_recovery.py

@@ -10,9 +10,8 @@ import types
 
 import api.models as models
 from api.models import Session, reconciled_state_db_messages_for_session
-from api.routes import _handle_session_compress, get_session
+from api.routes import _handle_session_compress
 from api.session_recovery import inspect_session_recovery_status, recover_all_sessions_on_startup
-from tests._pytest_port import BASE
 
 
 class _FakeHandler: