Jquery script loaded on every page

Every page on site has this script
Is there any role, seems like of tinymce editor
how to disable same, any plugin to disable, as i do not use tinymce on front end of site

<script type="text/javascript">
jQuery(function($) {
            SqueezeBox.initialize({});
            SqueezeBox.assign($('a.modal').get(), {
                parse: 'rel'
            });
        });

        window.jModalClose = function () {
            SqueezeBox.close();
        };

        // Add extra modal close functionality for tinyMCE-based editors
        document.onreadystatechange = function () {
            if (document.readyState == 'interactive' && typeof tinyMCE != 'undefined' && tinyMCE)
            {
                if (typeof window.jModalClose_no_tinyMCE === 'undefined')
                {   
                    window.jModalClose_no_tinyMCE = typeof(jModalClose) == 'function'  ?  jModalClose  :  false;

                    jModalClose = function () {
                        if (window.jModalClose_no_tinyMCE) window.jModalClose_no_tinyMCE.apply(this, arguments);
                        tinyMCE.activeEditor.windowManager.close();
                    };
                }

                if (typeof window.SqueezeBoxClose_no_tinyMCE === 'undefined')
                {
                    if (typeof(SqueezeBox) == 'undefined')  SqueezeBox = {};
                    window.SqueezeBoxClose_no_tinyMCE = typeof(SqueezeBox.close) == 'function'  ?  SqueezeBox.close  :  false;

                    SqueezeBox.close = function () {
                        if (window.SqueezeBoxClose_no_tinyMCE)  window.SqueezeBoxClose_no_tinyMCE.apply(this, arguments);
                        tinyMCE.activeEditor.windowManager.close();
                    };
                }
            }
        };

    </script>