Do not mark objects as public-read in the S3 bucket

There's no reason for the world to be able to read our objects. We read
them using the API keys, so we still have access.

Author: Mark-Simulacrum

src/db/file.rs

@@ -160,7 +160,6 @@ pub fn add_path_into_database<P: AsRef<Path>>(conn: &Connection,
 
             let content: Option<Vec<u8>> = if let Some(client) = &client {
                 let s3_res = client.put_object(PutObjectRequest {
-                    acl: Some("public-read".into()),
                     bucket: "rust-docs-rs".into(),
                     key: bucket_path.clone(),
                     body: Some(content.clone().into()),