At one point of time, my interest in Pokemon Go was high but after a while i completely lost interest in the game. The main reason why i dislike the game is because it takes such a long time to be strong enough to fight in the gym with other trainers and most of the time, i could easily lose to the other Pokemon Trainers. Somehow the other Pokemon trainers fare better and are more powerful than me. It takes such a long time going around neighbourhood in real life to collect and catch Pokemon. It takes even longer to power up the Pokemons and in the end, my Pokemon is still not a match for any other trainers in any Gym. I would rather like it if we didn't have to really go outside and walk around in order for the game to be played. I mean who has the time to walk around the neighbourhood everyday to catch Pokemon. Some of us has to earn for a living.
Anyways, back to the question which is to remove the Pokemon Go Account. If you need to permanently delete your Pokemon Go Account, you will need to provide your Trainer Nickname and also have access to your email associated with your Pokemon Account. Be reminded that all game data associated with your account will be completely and permanently deleted. You won't be able to reuse the same nickname or email if you decide to create a new Pokemon Account in the future. To permanently delete your Pokemon Account you will need to fill out this form here and click on Submit once you are done. Basically you are submitting a request to the Niantic website to remove your Pokemon Account Permanently and if approved, it will take several weeks for your request to be processed.