Remove/replace references to the "crawler policy"

We only have a data access policy at https://crates.io/data-access, which has replaced the `#crawler` part of `/policies`.

Author: Turbo87

app/templates/data-access.hbs

@@ -65,8 +65,7 @@
     the
     <a href="https://doc.rust-lang.org/cargo/reference/registry-web-api.html">Cargo Web API</a>.
     Should you be unable to use one of the previous options, you are welcome to
-    use the crates.io API provided you abide by the same limits as
-    <LinkTo @route="policies">the crawling policy</LinkTo>. In summary:
+    use the crates.io API provided you abide by the following limits:
   </p>
 
   <ol>

src/middleware/block_traffic.rs

@@ -72,11 +72,9 @@ fn rejection_response_from(state: &AppState, headers: &HeaderMap) -> Response {
 
     let body = format!(
         "We are unable to process your request at this time. \
-                 This usually means that you are in violation of our crawler \
-                 policy (https://{domain_name}/policies#crawlers). \
-                 Please open an issue at https://github.com/rust-lang/crates.io \
-                 or email help@crates.io \
-                 and provide the request id {request_id}"
+         This usually means that you are in violation of our API data access \
+         policy (https://{domain_name}/data-access). \
+         Please email help@crates.io and provide the request id {request_id}"
     );
 
     (StatusCode::FORBIDDEN, body).into_response()