Revert "Save JSON profile files from CI"

This reverts commit 78c6626.

The profiles are no longer generated (commit d9b3976),
so the upload will never work.

.github/workflows/bazel-test.yaml

@@ -64,11 +64,3 @@ jobs:
         shell: bash
         run: |
           make check-extra
-      - name: Upload profiles
-        uses: actions/upload-artifact@v4
-        with:
-          name: >-
-            profiles for Bazel version ${{matrix.bazel}} on ${{runner.os}}
-            compiled with ${{matrix.cc}}
-          path: ${{runner.temp}}/profiles/*.json.gz
-          if-no-files-found: ignore