Removes Experimental hotword-always-on feature.

ui/app_list/app_list_switches.cc

Index: ui/app_list/app_list_switches.cc
diff --git a/ui/app_list/app_list_switches.cc b/ui/app_list/app_list_switches.cc
index 31842f2563ba4d6eda73de4754602f7edbdaf9dd..be0e02156f939afb34bf6eb330d4d452613fa1c1 100644
--- a/ui/app_list/app_list_switches.cc
+++ b/ui/app_list/app_list_switches.cc
@@ -25,10 +25,6 @@ const char kEnableExperimentalAppList[] = "enable-experimental-app-list";
 const char kEnableExperimentalAppListPosition[] =
     "enable-experimental-app-list-position";
 
-// If set, it will always listen to the audio locally and open the app-list
-// when the hotword is recognized.
-const char kEnableHotwordAlwaysOn[] = "enable-app-list-hotword-always-on";
-
 // Enables syncing of the app list independent of extensions.
 const char kEnableSyncAppList[] = "enable-sync-app-list";
 
@@ -58,15 +54,6 @@ bool IsVoiceSearchEnabled() {
 #endif
 }
 
-bool IsHotwordAlwaysOnEnabled() {
-#if defined(OS_CHROMEOS)
-  return IsVoiceSearchEnabled() &&
-      CommandLine::ForCurrentProcess()->HasSwitch(kEnableHotwordAlwaysOn);
-#else
-  return false;
-#endif
-}
-
 bool IsAppInfoEnabled() {
   return CommandLine::ForCurrentProcess()->HasSwitch(kEnableAppInfo);
 }