Remove extra assert

tests/site.rs

@@ -242,7 +242,6 @@ fn test_can_build_site_with_tags() {
     assert!(file_exists!(public, "sitemap.xml"));
     assert!(file_exists!(public, "robots.txt"));
     assert!(file_exists!(public, "a-fixed-url/index.html"));
-    assert!(false);
     assert!(file_exists!(public, "posts/python/index.html"));
     assert!(file_exists!(public, "posts/tutorials/devops/nix/index.html"));
     assert!(file_exists!(public, "posts/with-assets/index.html"));