[remoting android] Remove host It2Me implementation.

remoting/host/BUILD.gn

Index: remoting/host/BUILD.gn
diff --git a/remoting/host/BUILD.gn b/remoting/host/BUILD.gn
index 49bea15fc44572f26151d13d187f23094d9762c1..51dcaada0d255950ed9239efd959c173e4aca11e 100644
--- a/remoting/host/BUILD.gn
+++ b/remoting/host/BUILD.gn
@@ -56,7 +56,6 @@ static_library("host") {
   sources = [
     "audio_capturer.cc",
     "audio_capturer.h",
-    "audio_capturer_android.cc",
     "audio_capturer_linux.cc",
     "audio_capturer_linux.h",
     "audio_capturer_mac.cc",
@@ -105,13 +104,11 @@ static_library("host") {
     "constants_mac.h",
     "continue_window.cc",
     "continue_window.h",
-    "continue_window_android.cc",
     "continue_window_chromeos.cc",
     "continue_window_linux.cc",
     "continue_window_mac.mm",
     "continue_window_win.cc",
     "curtain_mode.h",
-    "curtain_mode_android.cc",
     "curtain_mode_linux.cc",
     "curtain_mode_mac.cc",
     "curtain_mode_win.cc",
@@ -124,7 +121,6 @@ static_library("host") {
     "desktop_process.cc",
     "desktop_process.h",
     "desktop_resizer.h",
-    "desktop_resizer_android.cc",
     "desktop_resizer_mac.cc",
     "desktop_resizer_ozone.cc",
     "desktop_resizer_win.cc",
@@ -138,7 +134,6 @@ static_library("host") {
     "desktop_session_proxy.h",
     "desktop_session_win.cc",
     "desktop_session_win.h",
-    "disconnect_window_android.cc",
     "disconnect_window_chromeos.cc",
     "disconnect_window_linux.cc",
     "disconnect_window_mac.h",
@@ -181,7 +176,6 @@ static_library("host") {
     "host_window_proxy.cc",
     "host_window_proxy.h",
     "input_injector.h",
-    "input_injector_android.cc",
     "input_injector_chromeos.cc",
     "input_injector_chromeos.h",
     "input_injector_mac.cc",
@@ -219,7 +213,6 @@ static_library("host") {
     "linux/x_server_clipboard.cc",
     "linux/x_server_clipboard.h",
     "local_input_monitor.h",
-    "local_input_monitor_android.cc",
     "local_input_monitor_chromeos.cc",
     "local_input_monitor_mac.mm",
     "local_input_monitor_win.cc",
@@ -240,7 +233,6 @@ static_library("host") {
     "oauth_token_getter_impl.h",
     "pairing_registry_delegate.cc",
     "pairing_registry_delegate.h",
-    "pairing_registry_delegate_android.cc",
     "pairing_registry_delegate_linux.cc",
     "pairing_registry_delegate_linux.h",
     "pairing_registry_delegate_mac.cc",
@@ -259,7 +251,6 @@ static_library("host") {
     "resizing_host_observer.cc",
     "resizing_host_observer.h",
     "resources.h",
-    "resources_android.cc",
     "resources_linux.cc",
     "resources_mac.cc",
     "resources_win.cc",
@@ -441,13 +432,6 @@ static_library("host") {
   if (enable_webrtc) {
     deps += [ "//third_party/webrtc/modules/desktop_capture" ]
   }
-
-  if (is_android) {
-    sources -= [
-      "single_window_desktop_environment.cc",
-      "single_window_desktop_environment.h",
-    ]
-  }
 }
 
 static_library("test_support") {
@@ -555,9 +539,6 @@ source_set("unit_tests") {
   if (is_chromeos) {
     sources -= [ "linux/x_server_clipboard_unittest.cc" ]
   }
-  if (is_android) {
-    sources -= [ "it2me/it2me_native_messaging_host_unittest.cc" ]
-  }
 
   configs += [ "//remoting/build/config:version" ]
 
@@ -603,7 +584,7 @@ if (enable_remoting_host) {
   }
 }
 
-if (enable_remoting_host && !is_android) {
+if (enable_remoting_host) {
   executable("remoting_start_host") {
     sources = [
       "setup/start_host_entry_point.cc",