Remove options to disable deadline scheduling

ui/compositor/compositor_switches.cc

Index: ui/compositor/compositor_switches.cc
diff --git a/ui/compositor/compositor_switches.cc b/ui/compositor/compositor_switches.cc
index 3e3002d9a92004e5d38262727cf39fa17a758e89..b50297c1ab7a1fb06dc73426feea3cc7514572f3 100644
--- a/ui/compositor/compositor_switches.cc
+++ b/ui/compositor/compositor_switches.cc
@@ -10,28 +10,8 @@ namespace switches {
 
 const char kDisableTestCompositor[] = "disable-test-compositor";
 
-const char kUIDisableDeadlineScheduling[] = "ui-disable-deadline-scheduling";
-
 const char kUIDisableThreadedCompositing[] = "ui-disable-threaded-compositing";
 
-const char kUIEnableDeadlineScheduling[] = "ui-enable-deadline-scheduling";
-
 const char kUIShowPaintRects[] = "ui-show-paint-rects";
 
-bool IsUIDeadlineSchedulingEnabled() {
-  const CommandLine& command_line = *CommandLine::ForCurrentProcess();
-
-  // Default to disabled.
-  bool enabled = false;
-
-  // Default to enabled for Aura.
-  enabled = true;
-
-  // Flags override.
-  enabled |= command_line.HasSwitch(switches::kUIEnableDeadlineScheduling);
-  enabled &= !command_line.HasSwitch(switches::kUIDisableDeadlineScheduling);
-
-  return enabled;
-}
-
 }  // namespace switches