Makefile.inc: Remove leftover

Commit 9a8d0a03db (crossgcc: Upgrade IASL from 20211217 to 20220331)
removed this parameter.

Change-Id: Iba062efcabac88edc1f7937b75ea9d5d884b448b
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64217
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
diff --git a/Makefile.inc b/Makefile.inc
index 052edae..8da6cba 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -270,7 +270,7 @@
 # For existing ASL code, ignore this warnings
 IASL_MISSING_DEPENDENCY = 3141
 
-IASL_WARNINGS_LIST = $(EMPTY_RESOURCE_TEMPLATE_WARNING) $(REDUNDANT_OFFSET_REMARK)
+IASL_WARNINGS_LIST = $(EMPTY_RESOURCE_TEMPLATE_WARNING)
 
 ifeq ($(CONFIG_IGNORE_IASL_MISSING_DEPENDENCY),y)
 	IASL_WARNINGS_LIST += $(IASL_MISSING_DEPENDENCY)