diff --git a/static/js/theme.js b/static/js/theme.js
index 0742efb88e..d61fef03f0 100644
--- a/static/js/theme.js
+++ b/static/js/theme.js
@@ -1001,35 +1001,6 @@ function initSearch() {
     window.relearn.runInitialSearch && window.relearn.runInitialSearch();
 }
 
-// debouncing function from John Hann
-// http://unscriptable.com/index.php/2009/03/20/debouncing-javascript-methods/
-(function($, sr) {
-
-    var debounce = function(func, threshold, execAsap) {
-        var timeout;
-
-        return function debounced() {
-            var obj = this, args = arguments;
-
-            function delayed() {
-                if (!execAsap)
-                    func.apply(obj, args);
-                timeout = null;
-            };
-
-            if (timeout)
-                clearTimeout(timeout);
-            else if (execAsap)
-                func.apply(obj, args);
-
-            timeout = setTimeout(delayed, threshold || 100);
-        };
-    }
-    // smartresize
-    jQuery.fn[sr] = function(fn) { return fn ? this.bind('resize', debounce(fn)) : this.trigger(sr); };
-
-})(jQuery, 'smartresize');
-
 jQuery(function() {
     initArrowNav();
     initMermaid();