Unlikely. What most YouTubers call "sponsors" they have instead signed up to be an affiliate for using an online form. He likely broke the conditions for which the affiliate link/code could be used, which could have been the reason he removed that section from the video.

He also removed the ending, and both the beginning and ending were the pretext for the flight – bringing his friends ashes in a used sandwich bag to be scattered in the mountains, so could have instead been removed to reduce the cheese factor.