base: Remove the string logging from CHECK().

device/bluetooth/dbus/bluez_dbus_manager.cc

Index: device/bluetooth/dbus/bluez_dbus_manager.cc
diff --git a/device/bluetooth/dbus/bluez_dbus_manager.cc b/device/bluetooth/dbus/bluez_dbus_manager.cc
index 99711d679ec75c5f2ad30e3071031c43bbe17214..8a07428d14d5592b82e7c7c8bd5ddf848bcee56f 100644
--- a/device/bluetooth/dbus/bluez_dbus_manager.cc
+++ b/device/bluetooth/dbus/bluez_dbus_manager.cc
@@ -55,7 +55,8 @@ BluezDBusManager::BluezDBusManager(dbus::Bus* bus, bool use_dbus_fakes)
     return;
   }
 
-  CHECK(GetSystemBus()) << "Can't initialize real clients without DBus.";
+  // Can't initialize real clients without DBus.
+  CHECK(GetSystemBus());
   dbus::MethodCall method_call(dbus::kObjectManagerInterface,
                                dbus::kObjectManagerGetManagedObjects);
   GetSystemBus()
@@ -243,8 +244,8 @@ void BluezDBusManager::Shutdown() {
 
 // static
 BluezDBusManager* bluez::BluezDBusManager::Get() {
-  CHECK(g_bluez_dbus_manager)
-      << "bluez::BluezDBusManager::Get() called before Initialize()";
+  // bluez::BluezDBusManager::Get() called before Initialize()
+  CHECK(g_bluez_dbus_manager);
   return g_bluez_dbus_manager;
 }