Remove unused cloudflare workflow (#7533)

.github/workflows/ci.yml

@@ -95,16 +95,6 @@ jobs:
 
       - run: yarn workspace @foxglove/studio-base run storybook:build
 
-      # Chromatic only runs on pushes or pulls to our source repo
-      - uses: chromaui/action@v11
-        if: ${{ github.event.repository.full_name == 'foxglove/studio' }}
-        with:
-          autoAcceptChanges: main
-          exitOnceUploaded: true
-          onlyChanged: true
-          projectToken: f50040a29fb8 # plaintext to allow building on PRs from forks
-          storybookBuildDir: storybook-static
-
   integration:
     runs-on: ${{ matrix.os }}
     timeout-minutes: 10