Removed unused extension.

plugins/org.yakindu.sct.simulation.core.sexec/src/org/yakindu/sct/simulation/core/sexec/interpreter/DefaultExecutionFlowInterpreter.xtend

@@ -33,7 +33,6 @@ import org.yakindu.sct.model.sexec.Trace
 import org.yakindu.sct.model.sexec.UnscheduleTimeEvent
 import org.yakindu.sct.model.sexec.extensions.StateVectorExtensions
 import org.yakindu.sct.model.sexec.transformation.SexecExtensions
-import org.yakindu.sct.model.sexec.transformation.StatechartExtensions
 import org.yakindu.sct.model.sgraph.FinalState
 import org.yakindu.sct.model.sgraph.RegularState
 import org.yakindu.sct.simulation.core.sruntime.ExecutionContext
@@ -57,8 +56,6 @@ class DefaultExecutionFlowInterpreter implements IExecutionFlowInterpreter {
 	@Inject protected extension ExecutionContextExtensions
 	@Inject
 	protected StateVectorExtensions stateVectorExtensions;
-	@Inject
-	protected StatechartExtensions statechartExtensions;
 
 	protected ExecutionFlow flow
 	protected ExecutionContext executionContext