ACPI / processor: remove pointless variable initialization

The 'errata' variable is a global variable which is set to zero,
no need to do that with a memset in the init function.
Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>

drivers/acpi/processor_driver.c

@@ -905,8 +905,6 @@ static int __init acpi_processor_init(void)
 	if (acpi_disabled)
 		return 0;
 
-	memset(&errata, 0, sizeof(errata));
-
 	result = acpi_bus_register_driver(&acpi_processor_driver);
 	if (result < 0)
 		return result;