ref: Remove changelog entry

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: lcian

CHANGELOG.md

@@ -2,10 +2,6 @@
 
 ## Unreleased
 
-### Features
-
-- (snapshots) Support dedicated objectstore auth token ([#3258](https://github.com/getsentry/sentry-cli/pull/3258))
-
 ### Fixes
 
 - Replace `eprintln!` with `log::info!` for progress bar completion messages when the progress bar is disabled (e.g. in CI). This avoids spurious stderr output that some CI systems treat as errors ([#3223](https://github.com/getsentry/sentry-cli/pull/3223)).