Remove un-needed method (updateLoadingAnimations).

chrome/browser/cocoa/browser_window_controller.mm

Index: chrome/browser/cocoa/browser_window_controller.mm
===================================================================
--- chrome/browser/cocoa/browser_window_controller.mm	(revision 25068)
+++ chrome/browser/cocoa/browser_window_controller.mm	(working copy)
@@ -666,18 +666,6 @@
   [toolbarController_ setIsLoading:isLoading];
 }
 
-// Called to start/stop the loading animations.
-- (void)updateLoadingAnimations:(BOOL)animate {
-  if (animate) {
-    // TODO(pinkerton): determine what throbber animation is necessary and
-    // start a timer to periodically update. Windows tells the tab strip to
-    // do this. It uses a single timer to coalesce the multiple things that
-    // could be updating. http://crbug.com/8281
-  } else {
-    // TODO(pinkerton): stop the timer.
-  }
-}
-
 // Make the location bar the first responder, if possible.
 - (void)focusLocationBar {
   [toolbarController_ focusLocationBar];