Update CHANGELOG.md to reflect the promotion of 16.2.1

Obvious fix; these changes are the result of automation not creative thinking.

CHANGELOG.md

@@ -1,25 +1,22 @@
 # Change Log
 
-<!-- latest_release 16.2.1 -->
-## [v16.2.1](https://github.com/chef/ohai/tree/v16.2.1) (2020-06-23)
-
-#### Merged Pull Requests
-- Make sure Darwin hosts are always mac_os_x [#1470](https://github.com/chef/ohai/pull/1470) ([tas50](https://github.com/tas50))
+<!-- latest_release -->
 <!-- latest_release -->
 
-<!-- release_rollup since=16.2.0 -->
-### Changes not yet released to rubygems.org
-
-#### Merged Pull Requests
-- Make sure Darwin hosts are always mac_os_x [#1470](https://github.com/chef/ohai/pull/1470) ([tas50](https://github.com/tas50)) <!-- 16.2.1 -->
+<!-- release_rollup -->
 <!-- release_rollup -->
 
 <!-- latest_stable_release -->
+## [v16.2.1](https://github.com/chef/ohai/tree/v16.2.1) (2020-06-23)
+
+#### Merged Pull Requests
+- Make sure Darwin hosts are always mac_os_x [#1470](https://github.com/chef/ohai/pull/1470) ([tas50](https://github.com/tas50))
+<!-- latest_stable_release -->
+
 ## [v16.2.0](https://github.com/chef/ohai/tree/v16.2.0) (2020-06-17)
 
 #### Merged Pull Requests
 - Remove an internal reference to blacklist [#1468](https://github.com/chef/ohai/pull/1468) ([tas50](https://github.com/tas50))
-<!-- latest_stable_release -->
 
 ## [v16.1.1](https://github.com/chef/ohai/tree/v16.1.1) (2020-05-15)