Can I remove all villages from an already created world?

Question

I am creating a world in Minecraft creative mode superflat 1.12.2, and after working on in awhile, I realized that I want to disable structures (Namely villages). How can I do this after I've already worked very hard on it, and don't want to lose it?

 

Also, I'd like to disable all of the annoying small lakes of water that are located every few blocks away.

Answer 1

Hey!!! Yes You Can!!! Just Go In The World And Place A Command Block, Put It On Repeat And Always Active, Then Type: /kill @e[type=villager] - Make Sure You Are In 1.8 And Above!!! Also Can You Help Me Out By Answering My Question? If You Know, Can You Make Ground Items Invisible? Ok Thats All, If You Want A Better Answer Let Me Know!

YT: https://www.youtube.com/channel/UCzjRpjwSKPqvwatj9e6Pg6g