Removes empty 1.2.4 stub from CHANGELOG

- and adds `Changed` section to 1.3.0 section.

Author: weierophinney

CHANGELOG.md

@@ -8,21 +8,7 @@ All notable changes to this project will be documented in this file, in reverse
 
 - Nothing.
 
-### Deprecated
-
-- Nothing.
-
-### Removed
-
-- Nothing.
-
-### Fixed
-
-- Nothing.
-
-## 1.2.4 - TBD
-
-### Added
+### Changed
 
 - Nothing.