Revert of mac: Implement custom AppKit Enter Fullscreen transition.

chrome/browser/ui/cocoa/browser_window_controller_private.h

Index: chrome/browser/ui/cocoa/browser_window_controller_private.h
diff --git a/chrome/browser/ui/cocoa/browser_window_controller_private.h b/chrome/browser/ui/cocoa/browser_window_controller_private.h
index 341c42886e2dbe56667ace8ae2a52c0830cb9706..ddb2138d3cf11371f623398baf0282a892939ccc 100644
--- a/chrome/browser/ui/cocoa/browser_window_controller_private.h
+++ b/chrome/browser/ui/cocoa/browser_window_controller_private.h
@@ -148,16 +148,11 @@
 // There is a bug in Mavericks for applications linked against OSX 10.8 and
 // earlier. The bug requires Screens Have Separate Spaces to be enabled, and
 // for the window to be on a secondary screen. When AppKit Fullscreen is
-// invoked on the window, its final frame is 22pt too short. These methods
-// detect when the relevant conditions have been met so that a hack can be
+// invoked on the window, its final frame is 22pt too short. This method
+// detects when the relevant conditions have been met so that a hack can be
 // applied to fix the size of the window.
 // http://crbug.com/396980
-+ (BOOL)systemSettingsRequireMavericksAppKitFullscreenHack;
 - (BOOL)shouldUseMavericksAppKitFullscreenHack;
-
-// Whether the instance should use a custom transition when animating into and
-// out of AppKit Fullscreen.
-- (BOOL)shouldUseCustomAppKitFullscreenTransition;
 
 @end  // @interface BrowserWindowController(Private)