Don't try to dist the stubs or comment check docs builds.

Change-Id: I0c567f28af8111cdb0eada30b8c0a30091967cd7
diff --git a/Android.mk b/Android.mk
index 1b31be1..9d7906e 100644
--- a/Android.mk
+++ b/Android.mk
@@ -474,6 +474,8 @@
 
 LOCAL_DROIDDOC_CUSTOM_TEMPLATE_DIR:=build/tools/droiddoc/templates-sdk
 
+LOCAL_UNINSTALLABLE_MODULE := true
+
 include $(BUILD_DROIDDOC)
 
 # $(gen), i.e. framework.aidl, is also needed while building against the current stub.
@@ -500,6 +502,8 @@
 
 LOCAL_DROIDDOC_CUSTOM_TEMPLATE_DIR:=build/tools/droiddoc/templates-sdk
 
+LOCAL_UNINSTALLABLE_MODULE := true
+
 include $(BUILD_DROIDDOC)
 
 # $(gen), i.e. framework.aidl, is also needed while building against the current stub.