chore: remove unused custom error type

src/main.rs

@@ -12,12 +12,7 @@ use axum::{
 use mockall::automock;
 use octocrab::params::repos::Commitish;
 use serde::Deserialize;
-use std::{
-    collections::HashMap,
-    default,
-    fmt::{Debug, Display},
-    sync::Arc,
-};
+use std::{collections::HashMap, default, fmt::Debug, sync::Arc};
 use tower::ServiceBuilder;
 use tower_http::trace::TraceLayer;
 use tracing::{debug, info, instrument, trace};
@@ -294,18 +289,6 @@ trait GetSuccessfulCheckRuns: GetDataFromGitHub {
 
 impl<T: ?Sized + GetDataFromGitHub> GetSuccessfulCheckRuns for T {}
 
-#[derive(Debug)]
-enum GetCheckRunsForGitRefError {
-    ClientFetchError,
-    NothingFound,
-}
-impl Display for GetCheckRunsForGitRefError {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "{}", self)
-    }
-}
-impl std::error::Error for GetCheckRunsForGitRefError {}
-
 #[cfg_attr(test, automock)]
 #[async_trait]
 trait GetDataFromGitHub: Send + Sync + Debug + 'static {