mb/*/*/dsdt.asl: Drop useless comments in DefinitionBlock()

Change-Id: I1e0489ec6730760f74102cdd00e4aaa66975d69a
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45801
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
diff --git a/src/mainboard/pcengines/apu2/dsdt.asl b/src/mainboard/pcengines/apu2/dsdt.asl
index f33c524..94bfe63 100644
--- a/src/mainboard/pcengines/apu2/dsdt.asl
+++ b/src/mainboard/pcengines/apu2/dsdt.asl
@@ -4,7 +4,7 @@
 #include <acpi/acpi.h>
 DefinitionBlock (
 	"dsdt.aml",
-	"DSDT",		/* Signature */
+	"DSDT",
 	ACPI_DSDT_REV_2,
 	OEM_ID,
 	ACPI_TABLE_CREATOR,