Remove logging intitialization

It overrides the rocket logging which we don't want.

src/main.rs

@@ -81,7 +81,6 @@ fn not_found(_: &Request) -> &'static str {
 }
 
 fn main() {
-    env_logger::init();
     dotenv::dotenv().ok();
     let client = Client::new();
     let gh = GithubClient::new(client.clone(), env::var("GITHUB_API_TOKEN").unwrap());