Clarify comment (and remove changelog) from CI workflow.

Author: rwest

.github/workflows/CI.yml

@@ -12,20 +12,6 @@
 # them. These 'answers' are re-generated daily, or on any push to main, and retrieved whenever
 # a push is made to a non-main branch. The new proposed changes are referred to as "Dynamic".
 #
-#
-# Changelog:
-# 2023-04    - Jackson Burns - Added this header, regression tests, cleanup of action in
-#              in general, and documentation throughout the file.
-# 2023-05    - added Docker build steps
-# 2023-05-12 - added changes to allow running on forks
-# 2023-06-06 - added matrix build for libstdcxx-ng versions 12 and 13 on ubuntu. Only expect 12 to work.
-# 2023-06-07 - updated regression testing. Now fails if significant changes are detected.
-# 2023-06-15 - revert changes from 06-06, both now work
-# 2023-06-27 - add option to run from RMG-database with GitHub resuable workflows
-# 2023-07-17 - made it pass by default
-# 2023-07-21 - upload the regression results summary as artifact (for use as a comment on PRs)
-# 2023-07-31 - removed option to run from RMG-database with GitHub resuable workflows
-# 2024-10-01 - deprecated Mambaforge with Miniforge3 for environment creation
 
 name: Continuous Integration
 
@@ -69,13 +55,12 @@ jobs:
         os: [macos-15-intel, macos-latest, ubuntu-latest]
         include-rms: ["", "with RMS"]
         exclude:
-          # only check for "with RMS" functionality on ubuntu, just to be safe
-          # (and only ubuntu since its the fastest and most abundant)
+          # on macos, only check with RMS (assume it also works without RMS)
           - os: macos-15-intel
             include-rms: ""
           - os: macos-latest
             include-rms: ""
-          # only test macos with latest Python version
+          # on macos, only test with latest Python version
           - os: macos-15-intel
             python-version: "3.9"
           - os: macos-latest