[Continuation] Removed the FlowExecution::getActiveFlowExecutionTicke…

…t() method. (Issue piece#4)

src/Piece/Flow/Continuation/FlowExecution.php

@@ -153,7 +153,7 @@ public function hasExclusiveFlowExecution($flowID)
      */
     public function getActiveFlow()
     {
-        return $this->flowExecutions[ $this->getActiveFlowExecutionTicket() ]->getPageFlow();
+        return $this->flowExecutions[ $this->activeFlowExecutionTicket ]->getPageFlow();
     }
 
     /**
@@ -187,17 +187,6 @@ public function getFlowExecutionTicketByFlowID($flowID)
         return @$this->exclusiveFlowExecutionTicketsByFlowID[$flowID];
     }
 
-    /**
-     * Gets the flow execution ticket for the active flow execution.
-     *
-     * @return string
-     * @since Method available since Release 1.16.0
-     */
-    public function getActiveFlowExecutionTicket()
-    {
-        return $this->activeFlowExecutionTicket;
-    }
-
     /**
      * @param string $id
      * @return \Piece\Flow\Continuation\PageFlowInstance