diff --git a/vintfdata/Android.mk b/vintfdata/Android.mk
index bc7a55a..3db7065 100644
--- a/vintfdata/Android.mk
+++ b/vintfdata/Android.mk
@@ -62,15 +62,6 @@
 
 GEN := $(local-generated-sources-dir)/manifest.xml
 
-$(GEN): PRIVATE_FLAGS :=
-
-ifeq ($(PRODUCT_ENFORCE_VINTF_MANIFEST),true)
-ifdef BUILT_VENDOR_MATRIX
-$(GEN): $(BUILT_VENDOR_MATRIX)
-$(GEN): PRIVATE_FLAGS += -c "$(BUILT_VENDOR_MATRIX)"
-endif
-endif
-
 $(GEN): PRIVATE_VINTF_VNDK_VERSION := $(VINTF_VNDK_VERSION)
 $(GEN): PRIVATE_FRAMEWORK_MANIFEST_INPUT_FILES := $(FRAMEWORK_MANIFEST_INPUT_FILES)
 $(GEN): $(FRAMEWORK_MANIFEST_INPUT_FILES) $(HOST_OUT_EXECUTABLES)/assemble_vintf
@@ -78,7 +69,7 @@
 	PLATFORM_SYSTEMSDK_VERSIONS="$(PLATFORM_SYSTEMSDK_VERSIONS)" \
 		$(HOST_OUT_EXECUTABLES)/assemble_vintf \
 		-i $(call normalize-path-list,$(PRIVATE_FRAMEWORK_MANIFEST_INPUT_FILES)) \
-		-o $@ $(PRIVATE_FLAGS)
+		-o $@
 
 LOCAL_PREBUILT_MODULE_FILE := $(GEN)
 include $(BUILD_PREBUILT)
@@ -86,4 +77,4 @@
 
 VINTF_VNDK_VERSION :=
 FRAMEWORK_MANIFEST_INPUT_FILES :=
-DEVICE_MATRIX_INPUT_FILE :=
+DEVICE_MATRIX_INPUT_FILE :=
\ No newline at end of file