build: Remove TARGET_CRYPTFS_HW_PATH

* Not used since 16.0 where vold/cryptfs_hw switched to bp

Change-Id: I649402d9a3b94df8810d577147e09a51833192a0

config/BoardConfigQcom.mk

@@ -96,8 +96,3 @@ PRODUCT_SOONG_NAMESPACES += \
     hardware/qcom/audio-caf/$(QCOM_HARDWARE_VARIANT) \
     hardware/qcom/display-caf/$(QCOM_HARDWARE_VARIANT) \
     hardware/qcom/media-caf/$(QCOM_HARDWARE_VARIANT)
-
-# QCOM HW crypto
-ifeq ($(TARGET_HW_DISK_ENCRYPTION),true)
-    TARGET_CRYPTFS_HW_PATH ?= vendor/qcom/opensource/cryptfs_hw
-endif