utils: remove link to issues page in nothuman error

utils/src/error.rs

@@ -40,9 +40,7 @@ impl ResponseError for Error {
             Self::NotHuman { target } => format!(
                "It looks like you're accessing the Tatoeba API proxy from a script!\n\
                 Tatoeba CORS restrictions do not apply outside of browsers, so please access the API directly:\n\
-                {target}\n\
+                {target}"),
-                If you feel this is mistake, please open an issue:\n\
-                https://codeberg.org/ElnuDev/tatoeba-api-rs"),
             _ => self.to_string(),
         })
     }