Remove ai-suggested fragment.

The syntax wasn't permitted, and this isn't a strong need.

.github/workflows/quarto-docs.yml

@@ -11,9 +11,8 @@ jobs:
     runs-on: ubuntu-latest
     permissions:
       contents: write
-    # Don't run in forks, unless the forker sets a secret variable. I chose to
-    # use a secret rather than a var because secrets are not copied to forks.
-    if: ${{ github.event.repository.fork == false || secrets.ALLOW_FORK_DEPLOY == 'true' }}
+    # Don't run in forks.
+    if: ${{ github.event.repository.fork == false }}
     steps:
       - name: Check out repository
         uses: actions/checkout@v4