diff --git a/test/helpers/matchers.js b/test/helpers/matchers.js
index 95393a91ffb7..1c3b17c39212 100644
--- a/test/helpers/matchers.js
+++ b/test/helpers/matchers.js
@@ -25,13 +25,6 @@ beforeEach(function() {
     };
   }
 
-  function indexOf(array, obj) {
-    for ( var i = 0; i < array.length; i++) {
-      if (obj === array[i]) return i;
-    }
-    return -1;
-  }
-
   function isNgElementHidden(element) {
     // we need to check element.getAttribute for SVG nodes
     var hidden = true;