So I think I tried everything to exclude the DefaultBloomKernel.uexp from being packaged but it can not be done.
I blacklisted it for Shipping Builds, I added
DefaultBloomKernelTextureName=/Engine/EngineResources/DefaultTexture.DefaultTexture
to the AndroidEngine.ini
and I have disabled bloom effects in the settings. Still it always shows up in Saved\Cooked\Android_Multi\Engine\Content\EngineMaterials
I suppose this is not working as intended or did I miss something?