diff --git a/core/envsetup.mk b/core/envsetup.mk
index 04bfe49..880d310 100644
--- a/core/envsetup.mk
+++ b/core/envsetup.mk
@@ -221,11 +221,6 @@
   $(error Use `MALLOC_SVELTE := true` to configure jemalloc for low-memory)
 endif
 TARGET_DEVICE_DIR := $(patsubst %/,%,$(dir $(board_config_mk)))
-ifneq ($(ENABLE_TREBLE),true)
-ifneq ($(BOARD_WRAPS_CONVENTIONAL_HALS),)
-$(error BOARD_WRAPS_CONVENTIONAL_HALS cannot be defined when ENABLE_TREBLE is not set to true)
-endif
-endif
 board_config_mk :=
 
 ###########################################
diff --git a/target/board/generic_arm64_ab/BoardConfig.mk b/target/board/generic_arm64_ab/BoardConfig.mk
index 4c57f31..2c3821a 100644
--- a/target/board/generic_arm64_ab/BoardConfig.mk
+++ b/target/board/generic_arm64_ab/BoardConfig.mk
@@ -47,12 +47,6 @@
 # Generic AOSP image does NOT support HWC1
 TARGET_USES_HWC2 := true
 
-# TODO(jiyong): Remove these two. These are required in order to remove
-# board-specific sysprops from system.img. This should be replaced with
-# a more meaningful build flags such as BOARD_SYSPROP_SPLIT.
-ENABLE_TREBLE := true
-BOARD_VENDORIMAGE_FILE_SYSTEM_TYPE := ext4
-
 TARGET_ARCH := arm64
 TARGET_ARCH_VARIANT := armv8-a
 TARGET_CPU_ABI := arm64-v8a