cc: Remove unused scheduler setting.

cc/scheduler/scheduler_settings.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/scheduler/scheduler_settings.h"
 
 #include "base/trace_event/trace_event_argument.h"
 
 namespace cc {
 
@@ skipping 13 matching lines @@
                     main_frame_before_activation_enabled);
   state->SetBoolean("commit_to_active_tree", commit_to_active_tree);
   state->SetBoolean("timeout_and_draw_when_animation_checkerboards",
                     timeout_and_draw_when_animation_checkerboards);
   state->SetInteger("maximum_number_of_failed_draws_before_draw_is_forced",
                     maximum_number_of_failed_draws_before_draw_is_forced);
   state->SetBoolean("using_synchronous_renderer_compositor",
                     using_synchronous_renderer_compositor);
   state->SetInteger("background_frame_interval",
                     background_frame_interval.InMicroseconds());
-  state->SetBoolean("abort_commit_before_compositor_frame_sink_creation",
-                    abort_commit_before_compositor_frame_sink_creation);
   state->SetBoolean("enable_latency_recovery", enable_latency_recovery);
   return std::move(state);
 }
 
 }  // namespace cc