Fixes for -Wunused-function on Linux, Android and ChromeOS

chromeos/dbus/fake_shill_service_client.cc

Index: chromeos/dbus/fake_shill_service_client.cc
diff --git a/chromeos/dbus/fake_shill_service_client.cc b/chromeos/dbus/fake_shill_service_client.cc
index 19ab3d6dc03d8829aded5e03bae393f412f03514..c968d80ec67892806d2c9a00518968a479fc2d2c 100644
--- a/chromeos/dbus/fake_shill_service_client.cc
+++ b/chromeos/dbus/fake_shill_service_client.cc
@@ -26,11 +26,6 @@ namespace chromeos {
 
 namespace {
 
-void ErrorFunction(const std::string& error_name,
-                   const std::string& error_message) {
-  LOG(ERROR) << "Shill Error: " << error_name << " : " << error_message;
-}
-
 void PassStubListValue(const ShillServiceClient::ListValueCallback& callback,
                        base::ListValue* value) {
   callback.Run(*value);