test-art-host-oat targets should not rerun dex2oat

Change-Id: Ic1c70c750b892e34ef69199e7d8cce166c9f8791
diff --git a/build/Android.oattest.mk b/build/Android.oattest.mk
index 0ccf106..3166b75 100644
--- a/build/Android.oattest.mk
+++ b/build/Android.oattest.mk
@@ -67,7 +67,6 @@
 .PHONY: test-art-host-oat-$(1)
 test-art-host-oat-$(1): $(ART_TEST_OUT)/oat-test-dex-$(1).jar $(HOST_CORE_IMG_OUT)
 	mkdir -p /tmp/android-data/test-art-host-oat-$(1)
-	$(DEX2OAT) --runtime-arg -Xms16m --runtime-arg -Xmx16m --dex-file=$(HOST_OUT_JAVA_LIBRARIES)/oat-test-dex-$(1).jar --oat-file=$(HOST_OUT_JAVA_LIBRARIES)/oat-test-dex-$(1).jar.oat --instruction-set=X86
 	ANDROID_DATA=/tmp/android-data/test-art-host-oat-$(1) \
 	  ANDROID_ROOT=$(HOST_OUT) \
 	  LD_LIBRARY_PATH=$(HOST_OUT_SHARED_LIBRARIES) \