I used below javascript in allitems.aspx to hide the action menu:
<script type="text/javascript" src="/Documents/jquery.hiding-1.4.2.min.js"></script>
<script language="javascript" type="text/javascript">
$(document).ready(function() {
var link = $('a[id$="ListActionsMenu"]').filter(':contains("Actions")');
link.parent().hide();
});
</script>