exo: Remove support for scaler interface from wayland bindings.

third_party/wayland-protocols/BUILD.gn

 # 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.
 
 config("xdg_shell_protocol_config") {
   include_dirs = [ "include/protocol" ]
 }
 
 source_set("xdg_shell_protocol") {
   sources = [
@@ skipping 47 matching lines @@
   deps = [
     "//third_party/wayland:wayland_util",
   ]
 
   configs -= [ "//build/config/compiler:chromium_code" ]
   configs += [ "//build/config/compiler:no_chromium_code" ]
 
   public_configs = [ ":viewporter_protocol_config" ]
 }
 
-config("scaler_protocol_config") {
-  include_dirs = [ "include/protocol" ]
-}
-
-source_set("scaler_protocol") {
-  sources = [
-    "include/protocol/scaler-client-protocol.h",
-    "include/protocol/scaler-server-protocol.h",
-    "protocol/scaler-protocol.c",
-  ]
-
-  deps = [
-    "//third_party/wayland:wayland_util",
-  ]
-
-  configs -= [ "//build/config/compiler:chromium_code" ]
-  configs += [ "//build/config/compiler:no_chromium_code" ]
-
-  public_configs = [ ":scaler_protocol_config" ]
-}
-
 config("secure_output_protocol_config") {
   include_dirs = [ "include/protocol" ]
 }
 
 source_set("secure_output_protocol") {
   sources = [
     "include/protocol/secure-output-unstable-v1-client-protocol.h",
     "include/protocol/secure-output-unstable-v1-server-protocol.h",
     "protocol/secure-output-protocol.c",
   ]
@@ skipping 42 matching lines @@
 
   deps = [
     "//third_party/wayland:wayland_util",
   ]
 
   configs -= [ "//build/config/compiler:chromium_code" ]
   configs += [ "//build/config/compiler:no_chromium_code" ]
 
   public_configs = [ ":remote_shell_protocol_config" ]
 }