[player] Update release notes

docs/release-notes-player.txt

@@ -2,7 +2,6 @@ Player
 ======
 1.13.0
  - Improve page snapping when scrolling when concat-scroll-snap property is selected
- - Use fixed size property for video and spelling components
  - Color the disabled progress bar of the media player green
  - Fix the section from being placed in front of elements with negative z-index
  - Fix saving of drop list elements