diff --git a/core/config.mk b/core/config.mk
index 5b02569..1ecccb2 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -42,6 +42,7 @@
 # Mark variables deprecated/obsolete
 CHANGES_URL := https://android.googlesource.com/platform/build/+/master/Changes.md
 .KATI_READONLY := CHANGES_URL
+$(KATI_deprecated_var TARGET_USES_64_BIT_BINDER,All devices use 64-bit binder by default now. Uses of TARGET_USES_64_BIT_BINDER should be removed.)
 $(KATI_obsolete_var PATH,Do not use PATH directly. See $(CHANGES_URL)#PATH)
 $(KATI_obsolete_var PYTHONPATH,Do not use PYTHONPATH directly. See $(CHANGES_URL)#PYTHONPATH)
 $(KATI_obsolete_var OUT,Use OUT_DIR instead. See $(CHANGES_URL)#OUT)
diff --git a/core/soong_config.mk b/core/soong_config.mk
index 346edcf..daccd36 100644
--- a/core/soong_config.mk
+++ b/core/soong_config.mk
@@ -2,13 +2,6 @@
 SOONG_VARIABLES := $(SOONG_OUT_DIR)/soong.variables
 SOONG_ANDROID_MK := $(SOONG_OUT_DIR)/Android-$(TARGET_PRODUCT).mk
 
-BINDER32BIT :=
-ifneq ($(TARGET_USES_64_BIT_BINDER),true)
-ifneq ($(TARGET_IS_64_BIT),true)
-BINDER32BIT := true
-endif
-endif
-
 include $(BUILD_SYSTEM)/art_config.mk
 include $(BUILD_SYSTEM)/dex_preopt_config.mk
 
@@ -142,7 +135,6 @@
 $(call add_json_bool, SamplingPGO,                       $(filter true,$(SAMPLING_PGO)))
 
 $(call add_json_bool, ArtUseReadBarrier,                 $(call invert_bool,$(filter false,$(PRODUCT_ART_USE_READ_BARRIER))))
-$(call add_json_bool, Binder32bit,                       $(BINDER32BIT))
 $(call add_json_str,  BtConfigIncludeDir,                $(BOARD_BLUETOOTH_BDROID_BUILDCFG_INCLUDE_DIR))
 $(call add_json_list, DeviceKernelHeaders,               $(TARGET_DEVICE_KERNEL_HEADERS) $(TARGET_BOARD_KERNEL_HEADERS) $(TARGET_PRODUCT_KERNEL_HEADERS))
 $(call add_json_str,  DeviceVndkVersion,                 $(BOARD_VNDK_VERSION))