* [task#144207,done,0.1h] remove unused vars.

module/execution/model.php

@@ -1985,7 +1985,7 @@ class executionModel extends model
             ->orderBy('t1.order_asc, t1.id_desc')
             ->fetchGroup('execution', 'id');
 
-        $today      = $begin = $end = helper::today();
+        $begin      = $end = helper::today();
         $taskIdList = array();
         foreach($executionTasks as $tasks)
         {

module/programplan/model.php

@@ -876,7 +876,7 @@ class programplanModel extends model
         $isGantt = $this->app->rawModule == 'programplan' && $this->app->rawMethod == 'browse';
         if($isGantt) $plans = $this->loadModel('execution')->getByIdList($planIdList);
 
-        $today        = $begin = $end = helper::today();
+        $begin        = $end = helper::today();
         $deadlineList = array();
         foreach($tasks as $taskID => $task)
         {