Fix build warning.

Change-Id: I1f9813c9dc1dfc388f82f37584fe60256b6a8b12
diff --git a/dx/junit-tests/Android.mk b/dx/junit-tests/Android.mk
index e1f3c41..3f2c611 100644
--- a/dx/junit-tests/Android.mk
+++ b/dx/junit-tests/Android.mk
@@ -5,6 +5,5 @@
 LOCAL_SRC_FILES := $(call all-subdir-java-files)
 LOCAL_JAVA_LIBRARIES := dx junit
 LOCAL_MODULE_TAGS := optional
-LOCAL_MODULE_TAGS := tests
 LOCAL_MODULE:= dx-tests
 include $(BUILD_HOST_JAVA_LIBRARY)