Removes 'Pastebin mirror' as it is not working anymore

Fixes #402.

readme.md

@@ -11,9 +11,6 @@ Please ensure you use an adblocker like [uBlock Origin](https://github.com/gorhi
 
 For discussion and feedback, please head to [the Reddit thread on /r/Piracy](https://www.reddit.com/r/Piracy/comments/9nontk/awesome_piracy_a_curated_list_of_awesome_warez/). If you come across dead links, please report them by [creating an issue](https://github.com/Igglybuff/awesome-piracy/issues/new).
 
-## Mirrors
-This list is periodically mirrored to [PasteBin](https://github.com/Igglybuff/awesome-piracy/blob/master/pastebin.url).
-
 ## How to use this list
 Some items in this list could easily fit in more than one category, so to make sure you find what you're looking for please use `Ctrl + F` (or `Cmd + F` on macOS).