Fix use_image_texture_target inconsistencies

cc/proto/layer_tree_settings.proto

 // Copyright 2015 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.
 
 syntax = "proto2";
 
 import "layer_tree_debug_state.proto";
 import "managed_memory_policy.proto";
 import "renderer_settings.proto";
 import "size.proto";
@@ skipping 39 matching lines @@
   optional Size default_tile_size = 27;
   optional Size max_untiled_layer_size = 28;
   optional Size minimum_occlusion_tracking_size = 29;
   optional uint32 tiling_interest_area_padding = 30;
   optional float skewport_target_time_in_seconds = 31;
   optional int32 skewport_extrapolation_limit_in_screen_pixels = 32;
   optional uint32 max_memory_for_prepaint_percentage = 33;
   optional bool use_zero_copy = 35;
   optional bool use_partial_raster = 36;
   optional bool enable_elastic_overscroll = 37;
-  repeated uint32 use_image_texture_targets = 38;
   optional bool ignore_root_layer_flings = 39;
   optional uint32 scheduled_raster_task_limit = 40;
   optional bool use_occlusion_for_tile_prioritization = 41;
   optional bool image_decode_tasks_enabled = 44;
   optional bool use_compositor_animation_timelines = 45;
   optional bool wait_for_beginframe_interval = 46;
   optional int32 max_staging_buffer_usage_in_bytes = 47;
   optional ManagedMemoryPolicy memory_policy = 48;
   optional LayerTreeDebugState initial_debug_state = 49;
   optional bool use_cached_picture_raster = 51;
   optional bool async_worker_context_enabled = 52;
 }