ci: remove comment

Author: cpcloud

.github/workflows/ci.yml

@@ -193,7 +193,6 @@ jobs:
       - test-linux-aarch64
       - test-windows
       - doc
-    # run the checks if we're either 1) not a PR or 2) a PR but the head commit doesn't say to skip
     steps:
       - name: Exit
         run: exit 0