Remove extension automation support that was used only by CEEE.

chrome/test/automation/tab_proxy.cc

Index: chrome/test/automation/tab_proxy.cc
diff --git a/chrome/test/automation/tab_proxy.cc b/chrome/test/automation/tab_proxy.cc
index 2eb8dd27a1fa5a70a131150fe829ba5c0dcc7033..433f353e0313994c228d63b4609ea9f173cb6a3a 100644
--- a/chrome/test/automation/tab_proxy.cc
+++ b/chrome/test/automation/tab_proxy.cc
@@ -363,15 +363,6 @@ DOMElementProxyRef TabProxy::GetDOMDocument() {
   return GetObjectProxy<DOMElementProxy>(element_handle);
 }
 
-bool TabProxy::SetEnableExtensionAutomation(
-    const std::vector<std::string>& functions_enabled) {
-  if (!is_valid())
-    return false;
-
-  return sender_->Send(new AutomationMsg_SetEnableExtensionAutomation(
-      handle_, functions_enabled));
-}
-
 bool TabProxy::GetConstrainedWindowCount(int* count) const {
   if (!is_valid())
     return false;