style: clean use for question_mark

- remove useless `Ok` enclosing with `?`
lint message: enclosing `Ok` and `?` operator are unneeded
help: for further information visit https://rust-lang.github.io/rust-clippy/rust-1.92.0/index.html#needless_question_mark
- use question mark instead of manual implementation
lint message: this `match` expression can be replaced with `?`
help: for further information visit https://rust-lang.github.io/rust-clippy/rust-1.92.0/index.html#question_mark

src/api/admin/key.rs

@@ -91,7 +91,7 @@ impl RequestHandler for GetKeyInfoRequest {
 			}
 		};
 
-		Ok(key_info_results(garage, key, self.show_secret_key).await?)
+		key_info_results(garage, key, self.show_secret_key).await
 	}
 }
 

src/api/k2v/batch.rs

@@ -61,7 +61,7 @@ pub async fn handle_read_batch(
 		resps.push(resp?);
 	}
 
-	Ok(json_ok_response(&resps)?)
+	json_ok_response(&resps)
 }
 
 async fn handle_read_batch_query(
@@ -155,7 +155,7 @@ pub async fn handle_delete_batch(
 		resps.push(resp?);
 	}
 
-	Ok(json_ok_response(&resps)?)
+	json_ok_response(&resps)
 }
 
 async fn handle_delete_batch_query(

src/api/s3/list.rs

@@ -725,10 +725,7 @@ impl<K: std::cmp::Ord, V> Accumulator<K, V> {
 		let object = objects.peek().expect("This iterator can not be empty as it is checked earlier in the code. This is a logic bug, please report it.");
 
 		// Check if this is a common prefix (requires a passed delimiter and its value in the key)
-		let pfx = match common_prefix(object, query) {
-			Some(p) => p,
-			None => return None,
-		};
+		let pfx = common_prefix(object, query)?;
 		assert!(pfx.starts_with(&query.prefix));
 
 		// Try to register this prefix