Revert of Use setSequentialFocusNavigationStartingPoint in ChromeVox

chrome/renderer/resources/extensions/automation/automation_node.js

Index: chrome/renderer/resources/extensions/automation/automation_node.js
diff --git a/chrome/renderer/resources/extensions/automation/automation_node.js b/chrome/renderer/resources/extensions/automation/automation_node.js
index 94b2f6c0413c145029cfa88d93b6395b4e351b7b..fea3e53f237ab38505d746fae659cc27fb79bac9 100644
--- a/chrome/renderer/resources/extensions/automation/automation_node.js
+++ b/chrome/renderer/resources/extensions/automation/automation_node.js
@@ -366,10 +366,6 @@
                             anchorOffset: startIndex,
                             focusOffset: endIndex });
     }
-  },
-
-  setSequentialFocusNavigationStartingPoint: function() {
-    this.performAction_('setSequentialFocusNavigationStartingPoint');
   },
 
   showContextMenu: function() {
@@ -1037,7 +1033,6 @@
     'makeVisible',
     'matches',
     'setSelection',
-    'setSequentialFocusNavigationStartingPoint',
     'showContextMenu',
     'addEventListener',
     'removeEventListener',