Allow project managers to remove tasks

app/Template/task/layout.php

@@ -6,7 +6,7 @@
     </div>
     <section class="sidebar-container" id="task-section">
 
-        <?= $this->render('task/sidebar', array('task' => $task, 'hide_remove_menu' => isset($hide_remove_menu))) ?>
+        <?= $this->render('task/sidebar', array('task' => $task)) ?>
 
         <div class="sidebar-content">
             <?= $task_content_for_layout ?>

app/Template/task/sidebar.php

@@ -35,7 +35,7 @@
                 <?= $this->a(t('Open this task'), 'task', 'open', array('task_id' => $task['id'], 'project_id' => $task['project_id'])) ?>
             <?php endif ?>
         </li>
-        <?php if (! $hide_remove_menu): ?>
+        <?php if ($this->taskPermission->canRemoveTask($task)): ?>
         <li>
             <?= $this->a(t('Remove'), 'task', 'remove', array('task_id' => $task['id'], 'project_id' => $task['project_id'])) ?>
         </li>