Fix CHANGELOG after merge from main branch (#4776)

Signed-off-by: Alvin Lin <[email protected]>

Author: alvinlin123

CHANGELOG.md

@@ -1,7 +1,7 @@
 # Changelog
 
 ## master / unreleased
-[BUGFIX] Compactor: Fixes #4770 - an edge case in compactor where compaction stops when a tenant stops ingesting samples. #4771
+
 
 ## 1.13.0 in progress
 * [CHANGE] Changed default for `-ingester.min-ready-duration` from 1 minute to 15 seconds. #4539