Apply suggestion from @Swatinem

Co-authored-by: Arpad Borsos <[email protected]>

Author: tobias-wilfert

CHANGELOG.md

@@ -14,7 +14,6 @@
   - Breaking change: `sentry::integrations::log::LogFilter` has been changed to a `bitflags` struct.
   - It's now possible to map a `log` record to multiple items in Sentry by combining multiple log filters in the filter, e.g. `log::Level::ERROR => LogFilter::Event | LogFilter::Log`.
   - If using a custom `mapper` instead, it's possible to return a `Vec<sentry::integrations::log::RecordMapping>` to map a `log` record to multiple items in Sentry.
-  - Add custom variant to `AttachmentType` that holds an arbitrary String. ([#916](https://github.com/getsentry/sentry-rust/pull/916))
 
 ### Behavioral changes