ACPI: debugfs: Remove dead ACPICA debug code

The _COMPONENT and ACPI_MODULE_NAME() were not used even when
the debugfs.c was introduced, remove them.
Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/debugfs.c

@@ -10,9 +10,6 @@
 
 #include "internal.h"
 
-#define _COMPONENT		ACPI_SYSTEM_COMPONENT
-ACPI_MODULE_NAME("debugfs");
-
 struct dentry *acpi_debugfs_dir;
 EXPORT_SYMBOL_GPL(acpi_debugfs_dir);