diff --git a/4chan_x.js b/4chan_x.js
index 9b3fe3914..18f7d3ee4 100644
--- a/4chan_x.js
+++ b/4chan_x.js
@@ -256,16 +256,6 @@
         return n;
       }
     },
-    slice: function(arr, id) {
-      var el, i, _len;
-      for (i = 0, _len = arr.length; i < _len; i++) {
-        el = arr[i];
-        if (id === el.id) {
-          arr.splice(i, 1);
-          return arr;
-        }
-      }
-    },
     x: function(path, root) {
       if (root == null) {
         root = d.body;
diff --git a/script.coffee b/script.coffee
index d88dbba28..17f3d8e9a 100644
--- a/script.coffee
+++ b/script.coffee
@@ -145,12 +145,6 @@ $.extend $,
     GM_getValue name, config[name][0]
   zeroPad: (n) ->
     if n < 10 then '0' + n else n
-  slice: (arr, id) ->
-    # do I actually need this?
-    for el, i in arr
-      if id == el.id
-        arr.splice i, 1
-        return arr
   x: (path, root=d.body) ->
     d.evaluate(path, root, null, XPathResult.ANY_UNORDERED_NODE_TYPE, null).
       singleNodeValue