ACPI: PCI: Remove unused ACPICA debug code

The ACPICA debug code _COMPONENT and ACPI_MODULE_NAME() are
not used, so can be removed.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
[ rjw: Subject edit ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>