Remove unnecessary into() (#834)

## 📔 Objective

Clippy was complaining in my local build that this into was unnecessary,
and for some reason this wasn't caught by CI

## ⏰ Reminders before review

- Contributor guidelines followed
- All formatters and local linters executed and passed
- Written new unit and / or integration tests where applicable
- Protected functional changes with optionality (feature flags)
- Used internationalization (i18n) for all UI strings
- CI builds passed
- Communicated to DevOps any deployment requirements
- Updated any necessary documentation (Confluence, contributing docs) or
informed the documentation
  team

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crates/bitwarden-vault/src/cipher/linked_id.rs

@@ -112,7 +112,7 @@ impl TryFrom<u32> for LinkedIdType {
             416 => Ok(LinkedIdType::Identity(IdentityLinkedIdType::FirstName)),
             417 => Ok(LinkedIdType::Identity(IdentityLinkedIdType::LastName)),
             418 => Ok(LinkedIdType::Identity(IdentityLinkedIdType::FullName)),
-            _ => Err(MissingFieldError("LinkedIdType").into()),
+            _ => Err(MissingFieldError("LinkedIdType")),
         }
     }
 }