removed unused imports

Signed-off-by: Pedro Escaleira <pedroescaleira@hotmail.com>

Author: oEscal

serverlessworkflow/sdk/state_machine_generator.py

@@ -23,7 +23,6 @@
 from serverlessworkflow.sdk.transition_data_condition import TransitionDataCondition
 from serverlessworkflow.sdk.end_data_condition import EndDataCondition
 
-from transitions.extensions import HierarchicalMachine, GraphMachine
 from transitions.extensions.nesting import NestedState
 import warnings
 

serverlessworkflow/sdk/state_machine_helper.py

@@ -1,13 +1,10 @@
 from typing import List
 from serverlessworkflow.sdk.workflow import Workflow
 from serverlessworkflow.sdk.state_machine_generator import StateMachineGenerator
-from transitions.extensions.diagrams import HierarchicalGraphMachine, GraphMachine
 from serverlessworkflow.sdk.state_machine_extensions import (
     CustomGraphMachine,
     CustomHierarchicalGraphMachine,
 )
-from transitions.extensions.nesting import NestedState
-from transitions.extensions.diagrams_base import BaseGraph
 
 
 class StateMachineHelper: