Remove all buttons except spell Checker in TinyMCE Editor

This way

<script type="text/javascript" src="tinymce/jscripts/tiny_mce/tiny_mce.js"></script>
<script type="text/javascript">
   tinyMCE.init({
        mode : "textareas",
        theme : "advanced",
        plugins : "spellchecker",
        theme_advanced_buttons1: "spellchecker",
        theme_advanced_buttons2: "",
        theme_advanced_buttons3: "",
        theme_advanced_toolbar_location : "top",
        theme_advanced_toolbar_align : "left",
        theme_advanced_statusbar_location : "bottom",
        theme_advanced_resizing : false,
        spellchecker_languages: "English=en",
        spellchecker_rpc_url: '<%=ResolveUrl("~/TinyMCE.ashx?module=SpellChecker") %>'
    });
</script>