How to null vBulletin patch so the things like license number are removed?
Open one of the downloaded files and find your license number on the top, example:
|| # vBulletin - Licence Number VB*******
write down that number
Scroll down the file and on the bottom find the date and time of the download, example:
|| # Downloaded: 02:43, Wed Mar 1st 2017
Write that down.
Open program like PSPad and use search/replace function to replace license number + date/time string by something else, example by "0000"
PSPad/"Search and replace in files..." menu entry and select include sub-directories
It may change how vBulletin compose their patch files, so good to verify files thoroughly.