We have a lot of Not found (404) page is there how to remove

Hi,

We have around 2000 Not found (404) page,how to remove from the crawling.

That 404 pages are AMP pages - It's not indeexing on search engine, But it's crawling. Site links for example canada-immigration-news/canada-budget-sets/amp/ canada-immigration-news/canada-budget-sets/ Above link are issue links We added canoniacal tag 410 redirection and add robots.txt for blocking the URL but it's crawling How to remove the error from search console