[ci]: remove PPR-specific CI jobs (#84439)

`experimental.ppr` is being superseded by `experimental.cacheComponents`
and will not exist in the form that is currently being tested in CI.

This frees up these CI resources until we delete the standalone PPR
flag. `cacheComponents` is tested via the experimental runners.

Author: ztanner

.github/workflows/build_and_test.yml

@@ -919,75 +919,6 @@ jobs:
       stepName: 'test-firefox-safari'
     secrets: inherit
 
-  # TODO: remove these jobs once PPR is the default
-  # Manifest generated via: https://gist.github.com/wyattjoh/2ceaebd82a5bcff4819600fd60126431
-  test-ppr-integration:
-    name: test ppr integration
-    needs: ['optimize-ci', 'changes', 'build-native', 'build-next']
-    if: ${{ needs.optimize-ci.outputs.skip == 'false' && needs.changes.outputs.docs-only == 'false' }}
-
-    uses: ./.github/workflows/build_reusable.yml
-    with:
-      nodeVersion: 20.9.0
-      afterBuild: |
-        export __NEXT_EXPERIMENTAL_PPR=true
-        export NEXT_EXTERNAL_TESTS_FILTERS="test/ppr-tests-manifest.json"
-        export IS_WEBPACK_TEST=1
-
-        node run-tests.js \
-          --timings \
-          --type integration
-      stepName: 'test-ppr-integration'
-    secrets: inherit
-
-  test-ppr-dev:
-    name: test ppr dev
-    needs: ['optimize-ci', 'changes', 'build-native', 'build-next']
-    if: ${{ needs.optimize-ci.outputs.skip == 'false' && needs.changes.outputs.docs-only == 'false' }}
-
-    strategy:
-      fail-fast: false
-      matrix:
-        group: [1/6, 2/6, 3/6, 4/6, 5/6, 6/6]
-    uses: ./.github/workflows/build_reusable.yml
-    with:
-      afterBuild: |
-        export __NEXT_EXPERIMENTAL_PPR=true
-        export NEXT_EXTERNAL_TESTS_FILTERS="test/ppr-tests-manifest.json"
-        export NEXT_TEST_MODE=dev
-        export IS_WEBPACK_TEST=1
-
-        node run-tests.js \
-          --timings \
-          -g ${{ matrix.group }} \
-          --type development
-      stepName: 'test-ppr-dev-${{ matrix.group }}'
-    secrets: inherit
-
-  test-ppr-prod:
-    name: test ppr prod
-    needs: ['optimize-ci', 'changes', 'build-native', 'build-next']
-    if: ${{ needs.optimize-ci.outputs.skip == 'false' && needs.changes.outputs.docs-only == 'false' }}
-
-    strategy:
-      fail-fast: false
-      matrix:
-        group: [1/7, 2/7, 3/7, 4/7, 5/7, 6/7, 7/7]
-    uses: ./.github/workflows/build_reusable.yml
-    with:
-      afterBuild: |
-        export __NEXT_EXPERIMENTAL_PPR=true
-        export NEXT_EXTERNAL_TESTS_FILTERS="test/ppr-tests-manifest.json"
-        export NEXT_TEST_MODE=start
-        export IS_WEBPACK_TEST=1
-
-        node run-tests.js \
-          --timings \
-          -g ${{ matrix.group }} \
-          --type production
-      stepName: 'test-ppr-prod-${{ matrix.group }}'
-    secrets: inherit
-
   # TODO: Disable these when no more experiments are tested
   # Manifest generated via: https://gist.github.com/wyattjoh/2ceaebd82a5bcff4819600fd60126431
   test-experimental-integration:
@@ -1076,9 +1007,6 @@ jobs:
         'test-prod',
         'test-integration',
         'test-firefox-safari',
-        'test-ppr-dev',
-        'test-ppr-prod',
-        'test-ppr-integration',
         'test-experimental-dev',
         'test-experimental-prod',
         'test-experimental-integration',