Revert "mb/google/rex/var/screebo: Set `SAGV_POINTS_0_1_2` to avoid hang"

This reverts commit 5c35d30ffc.

Reason for revert: Here we need to confirm whether the issue in
mtl-staging-MTL.3323.92 has been improved in the QS sample
in the factory build.

BUG=b:287170545
TEST=Able to idle for more than 5+ hours without any hang.

Change-Id: I4517bbbefe11d95623d7e16a5e4bba2dd6f408e1
Signed-off-by: Wentao Qin <qinwentao@huaqin.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78320
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Mike Lee <mike5@huaqin.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>

src/mainboard/google/rex/variants/screebo/overridetree.cb

@@ -51,9 +51,6 @@ chip soc/intel/meteorlake
 	# Enable HDMI in Port B
 	register "ddi_port_B_config" = "0"
 
-	# TODO(b/287170545): workaround avoid DUT random hang
-	register "sagv_wp_bitmap" = "SAGV_POINTS_0_1_2"
-
 	# Enable Display Port Configuration
 	register "ddi_ports_config" = "{
 		[DDI_PORT_A] = DDI_ENABLE_HPD,