misc clippy fixes

the trivial ones ;)

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>

pbs-datastore/src/backup_info.rs

@@ -281,7 +281,7 @@ impl BackupDir {
 
     pub fn backup_time_to_string(backup_time: i64) -> Result<String, Error> {
         // fixme: can this fail? (avoid unwrap)
-        Ok(proxmox_time::epoch_to_rfc3339_utc(backup_time)?)
+        proxmox_time::epoch_to_rfc3339_utc(backup_time)
     }
 }
 

pbs-datastore/src/datastore.rs

@@ -356,7 +356,7 @@ impl DataStore {
         full_path.push(backup_group.group_path());
         full_path.push("owner");
         let owner = proxmox_sys::fs::file_read_firstline(full_path)?;
-        Ok(owner.trim_end().parse()?) // remove trailing newline
+        owner.trim_end().parse() // remove trailing newline
     }
 
     pub fn owns_backup(&self, backup_group: &BackupGroup, auth_id: &Authid) -> Result<bool, Error> {

pbs-datastore/src/dynamic_index.rs

@@ -714,7 +714,7 @@ impl<R: ReadChunk> ReadAt for LocalDynamicReadAt<R> {
         MaybeReady::Ready(tokio::task::block_in_place(move || {
             let mut reader = self.inner.lock().unwrap();
             reader.seek(SeekFrom::Start(offset))?;
-            Ok(reader.read(buf)?)
+            reader.read(buf)
         }))
     }