drivers/intel/gma/Kconfig: Remove unused INTEL_GMA_OPREGION_2_0

Change-Id: I9241d713fb8cc26c768746c8e442b46292036d20
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76694
Reviewed-by: Martin L Roth <gaumless@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/drivers/intel/gma/Kconfig b/src/drivers/intel/gma/Kconfig
index ea892d1..d1e16e2 100644
--- a/src/drivers/intel/gma/Kconfig
+++ b/src/drivers/intel/gma/Kconfig
@@ -118,11 +118,6 @@
 	default y if NORTHBRIDGE_INTEL_GM45 || NORTHBRIDGE_INTEL_IRONLAKE
 	default n
 
-config INTEL_GMA_OPREGION_2_0
-	bool
-	default n if INTEL_GMA_OPREGION_2_1
-	default y
-
 config INTEL_GMA_OPREGION_2_1
 	bool
 	default n