Remove LOCAL_BUILD_HOST_DEX.

Use BUILD_HOST_DALVIK_JAVA_LIBRARY instead.

(cherry picked from commit 7fae7755291e3ab45fbb9578b55a77f4814e0b35)

Change-Id: I63ae76de5943c750a3b7229804db32ed1ced104b
diff --git a/Android.mk b/Android.mk
index fcd1a95..bd2ea37 100644
--- a/Android.mk
+++ b/Android.mk
@@ -31,8 +31,7 @@
 LOCAL_SRC_FILES := $(call all-java-files-under, src)
 LOCAL_MODULE := hamcrest-hostdex
 LOCAL_MODULE_TAGS := optional
-LOCAL_BUILD_HOST_DEX := true
-include $(BUILD_HOST_JAVA_LIBRARY)
+include $(BUILD_HOST_DALVIK_JAVA_LIBRARY)
 endif