ACPI: sysfs: Get rid of ACPICA message printing

Replace the only ACPI_EXCEPTION() instance in sysfs.c with a
pr_warn() call, drop the _COMPONENT and ACPI_MODULE_NAME()
definitions that are not used any more and drop the
ACPI_SYSTEM_COMPONENT definition that would not be used any
more in a meaningful way after the above changes.

Signed-off-by: Rafael J. Wysocki <[e-mail]>
Reviewed-by: Hanjun Guo <[e-mail]>

Documentation/firmware-guide/acpi/debug.rst

···
     ACPI_SBS_COMPONENT              0x00100000
     ACPI_FAN_COMPONENT              0x00200000
     ACPI_CONTAINER_COMPONENT        0x01000000
-    ACPI_SYSTEM_COMPONENT           0x02000000
     ACPI_MEMORY_DEVICE_COMPONENT    0x08000000
 
 debug_level

drivers/acpi/sysfs.c

···
 
 #include "internal.h"
 
-#define _COMPONENT		ACPI_SYSTEM_COMPONENT
-ACPI_MODULE_NAME("sysfs");
-
 #ifdef CONFIG_ACPI_DEBUG
 /*
  * ACPI debug sysfs I/F, including:
···
 	ACPI_DEBUG_INIT(ACPI_SBS_COMPONENT),
 	ACPI_DEBUG_INIT(ACPI_FAN_COMPONENT),
 	ACPI_DEBUG_INIT(ACPI_CONTAINER_COMPONENT),
-	ACPI_DEBUG_INIT(ACPI_SYSTEM_COMPONENT),
 	ACPI_DEBUG_INIT(ACPI_MEMORY_DEVICE_COMPONENT),
 };
 
···
 	if (index < num_gpes) {
 		status = acpi_get_gpe_device(index, handle);
 		if (ACPI_FAILURE(status)) {
-			ACPI_EXCEPTION((AE_INFO, AE_NOT_FOUND,
-					"Invalid GPE 0x%x", index));
+			pr_warn("Invalid GPE 0x%x", index);
 			return -ENXIO;
 		}
 		status = acpi_get_gpe_status(*handle, index, ret);

include/acpi/acpi_drivers.h

···
 #define ACPI_SBS_COMPONENT		0x00100000
 #define ACPI_FAN_COMPONENT		0x00200000
 #define ACPI_CONTAINER_COMPONENT	0x01000000
-#define ACPI_SYSTEM_COMPONENT		0x02000000
 #define ACPI_MEMORY_DEVICE_COMPONENT	0x08000000
 
 /*