Revert #1682 (three-axis milling) (#1715)

Thanks @bherbruck.

.github/workflows/ci.yml

@@ -119,8 +119,6 @@ jobs:
         run: cargo xtask assets
       - name: Licences
         run: cargo xtask licences --check
-      - name: Analytic CAM acceptance
-        run: cargo xtask cam-validate
       - name: Dependency layers
         run: cargo xtask layers
       - name: Web app offline use and updates (headless Chrome)
@@ -212,7 +210,6 @@ jobs:
       # would skip for want of an adapter fails instead.
       SOLIDCRAFT_GPU: software
       SOLIDCRAFT_REQUIRE_GPU: "1"
-      CAM_UI_EVIDENCE: ${{ github.workspace }}/target/cam-ui-evidence
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - name: Install a software Vulkan driver (lavapipe)
@@ -251,14 +248,6 @@ jobs:
           cargo nextest run --archive-file tests.tar.zst --workspace-remap . --extract-to . --extract-overwrite \
             --profile ci --ignore-default-filter \
             -E "package(solidcraft-engine) & test(=tests::robustness_goldens::sample_$((SHARD - 1)))"
-      - name: Upload original CAM review images
-        if: always()
-        uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
-        with:
-          name: cam-ui-evidence-${{ matrix.shard }}
-          path: target/cam-ui-evidence
-          if-no-files-found: ignore
-          retention-days: 14
       - name: Upload test timings
         if: always()
         uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2