I have tried to find the [sys]elements that would kill this message, as accepting it is, ultimately inevitable. A slip of the hand and I am in for a few hours of rebuilding. I have frozen a couple of likely candidates (com.lge-fota something) and com.lge.permission something). While they have not proven to be needed for any of the uses of my phone, neither have they stopped the push message.
Does anyone know what might block this "Update is available" push message?