Revert of Move more utility functions to arc_util.

components/arc/arc_util.cc

Index: components/arc/arc_util.cc
diff --git a/components/arc/arc_util.cc b/components/arc/arc_util.cc
index d7e22dcf624ba68d61f0a627d827fbbdaa5aa61d..b2fbdd6afb4d9061d8740fb08bfea3f96474c9ea 100644
--- a/components/arc/arc_util.cc
+++ b/components/arc/arc_util.cc
@@ -7,7 +7,6 @@
 #include "base/command_line.h"
 #include "base/feature_list.h"
 #include "chromeos/chromeos_switches.h"
-#include "components/user_manager/user_manager.h"
 
 namespace arc {
 
@@ -36,14 +35,4 @@
   command_line->AppendSwitch(chromeos::switches::kEnableArc);
 }
 
-bool IsArcKioskMode() {
-  return user_manager::UserManager::Get()->IsLoggedInAsArcKioskApp();
-}
-
-bool IsArcOptInVerificationDisabled() {
-  const auto* command_line = base::CommandLine::ForCurrentProcess();
-  return command_line->HasSwitch(
-      chromeos::switches::kDisableArcOptInVerification);
-}
-
 }  // namespace arc