Is this a code based (C++) project or only Blueprint? Turning off the plugin will stop it packaging the assets but if it is a Blueprint project the binary included in the APK will still have the plugin compiled into it. A code based project will relink without the plugin code so the dependency on the assets. You can turn your content only project into a code project by just adding an empty class to it. Right click in content browser and select “New C++ Class”, leave the parent as none, click next, and give it a name and click create class. Now it should compile and link without the plugin code.
This helped me, too. Though, I was packing for Windows without Paper2D and LeapMotion. Actually I almost disabled every plugin, but only these two caused this warning.