internal: Remove unused actions/cache from benchmark workflows (#3797)

The rhysd/github-action-benchmark action fetches data directly from
gh-pages-bench branch — the actions/cache steps were never used.
Also set name: 'Benchmark React' so PR comments are distinguishable.

Made-with: Cursor

Author: ntucker

.github/workflows/benchmark-react.yml

@@ -55,18 +55,11 @@ jobs:
           cd examples/benchmark-react && yarn bench | tee react-bench-output.json
 
       # PR comments on changes
-      - name: Download previous benchmark data (PR)
-        if: ${{ github.event_name == 'pull_request' }}
-        uses: actions/cache@v5
-        with:
-          path: ./cache
-          key: ${{ runner.os }}-benchmark-react-pr-${{ github.run_number }}
-          restore-keys: |
-            ${{ runner.os }}-benchmark-react
       - name: Store benchmark result (PR)
         if: ${{ github.event_name == 'pull_request' }}
         uses: rhysd/github-action-benchmark@v1
         with:
+          name: 'Benchmark React'
           tool: 'customSmallerIsBetter'
           output-file-path: examples/benchmark-react/react-bench-output.json
           github-token: "${{ secrets.GITHUB_TOKEN }}"
@@ -80,16 +73,11 @@ jobs:
           auto-push: false
 
       # master reports to history
-      - name: Download previous benchmark data (main)
-        if: ${{ github.event_name == 'push' }}
-        uses: actions/cache@v5
-        with:
-          path: ./cache
-          key: ${{ runner.os }}-benchmark-react
       - name: Store benchmark result (main)
         if: ${{ github.event_name == 'push' }}
         uses: rhysd/github-action-benchmark@v1
         with:
+          name: 'Benchmark React'
           tool: 'customSmallerIsBetter'
           output-file-path: examples/benchmark-react/react-bench-output.json
           github-token: "${{ secrets.GITHUB_TOKEN }}"

.github/workflows/benchmark.yml

@@ -47,16 +47,7 @@ jobs:
     - name: Run benchmark
       run: yarn workspace example-benchmark start | tee output.txt
 
-
     # PR comments on changes
-    - name: Download previous benchmark data (PR)
-      if: ${{ github.event_name == 'pull_request' }}
-      uses: actions/cache@v5
-      with:
-        path: ./cache
-        key: ${{ runner.os }}-benchmark-pr-${{ github.run_number }}
-        restore-keys: |
-          ${{ runner.os }}-benchmark
     - name: Store benchmark result (PR)
       if: ${{ github.event_name == 'pull_request' }}
       uses: rhysd/github-action-benchmark@v1
@@ -65,22 +56,14 @@ jobs:
         output-file-path: output.txt
         github-token: "${{ secrets.GITHUB_TOKEN }}"
         gh-pages-branch: 'gh-pages-bench'
-        # Show alert with commit comment on detecting possible performance regression
         alert-threshold: '150%'
         comment-always: true
         fail-on-alert: false
         alert-comment-cc-users: '@ntucker'
-        # we only want to compare against master, so do not save for PR
         save-data-file: false
         auto-push: false
 
     # master reports to history
-    - name: Download previous benchmark data (main)
-      if: ${{ github.event_name == 'push' }}
-      uses: actions/cache@v5
-      with:
-        path: ./cache
-        key: ${{ runner.os }}-benchmark
     - name: Store benchmark result (main)
       if: ${{ github.event_name == 'push' }}
       uses: rhysd/github-action-benchmark@v1