CI: remove react.yml integration test workflow (#2947)

This was used to run React CI tests compiled with the React Compiler. This is currently no longer used.

.github/workflows/react.yml

@@ -1,27 +0,0 @@
-name: react
-
-on:
-  push:
-    branches: [main]
-  pull_request:
-
-jobs:
-  test:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
-        with:
-          node-version: 18.x
-          cache: "yarn"
-          cache-dependency-path: yarn.lock
-      - run: yarn install --frozen-lockfile
-      - run: yarn workspace babel-plugin-react-compiler run build
-      - run: yarn link
-        working-directory: packages/babel-plugin-react-compiler
-      - run: yarn link babel-plugin-react-compiler
-        working-directory: react
-      - run: yarn install --frozen-lockfile
-        working-directory: react
-      - run: yarn test --ci
-        working-directory: react