Rewrite tooltips code without jQuery

app/Helper/TextHelper.php

@@ -51,18 +51,6 @@ class TextHelper extends Base
         return $parser->text($text);
     }
 
-    /**
-     * Escape Markdown text that need to be stored in HTML attribute
-     *
-     * @access public
-     * @param  string $text
-     * @return mixed
-     */
-    public function markdownAttribute($text)
-    {
-        return htmlentities($this->markdown($text), ENT_QUOTES, 'UTF-8');
-    }
-
     /**
      * Format a file size
      *