remove unused autoplay class

src/Resources/contao/templates/ce_abrstreaming.html5

@@ -3,7 +3,7 @@
 <?php $this->block('content'); ?>
 
   <figure class="<?= $this->containerClass ?>">
-    <video class="abr-streaming<?php if ($this->autoplay): ?> autoplay<?php endif; ?>"<?= $this->size ?><?php if ($this->poster): ?> poster="<?= $this->poster ?>"<?php endif; ?><?php if ($this->preload): ?> preload="<?= $this->preload ?>"<?php endif; ?> <?= implode(' ', $this->attributes) ?>>
+    <video class="abr-streaming"<?= $this->size ?><?php if ($this->poster): ?> poster="<?= $this->poster ?>"<?php endif; ?><?php if ($this->preload): ?> preload="<?= $this->preload ?>"<?php endif; ?> <?= implode(' ', $this->attributes) ?>>
       <?php foreach ($this->files as $file): ?>
         <source type="<?= $file->mime ?>" src="<?= $file->path.$this->range ?>" title="<?= $file->title ?>">
       <?php endforeach; ?>