Delete unused CI jobs

These were replaced by the `build_combined` job.

.circleci/config.yml

@@ -91,61 +91,6 @@ jobs:
       - *restore_node_modules
       - run: node ./scripts/tasks/flow-ci
 
-  RELEASE_CHANNEL_stable_yarn_build:
-    docker: *docker
-    environment: *environment
-    parallelism: *TEST_PARALLELISM
-    steps:
-      - checkout
-      - run: yarn workspaces info | head -n -1 > workspace_info.txt
-      - *restore_node_modules
-      - run:
-          environment:
-            RELEASE_CHANNEL: stable
-          command: |
-            ./scripts/circleci/add_build_info_json.sh
-            ./scripts/circleci/update_package_versions.sh
-            yarn build
-      - run: echo "stable" >> build/RELEASE_CHANNEL
-      - persist_to_workspace:
-          root: build
-          paths:
-            - RELEASE_CHANNEL
-            - facebook-www
-            - facebook-react-native
-            - facebook-relay
-            - node_modules
-            - react-native
-            - dist
-            - sizes/*.json
-
-  yarn_build:
-    docker: *docker
-    environment: *environment
-    parallelism: 20
-    steps:
-      - checkout
-      - run: yarn workspaces info | head -n -1 > workspace_info.txt
-      - *restore_node_modules
-      - run:
-          environment:
-            RELEASE_CHANNEL: experimental
-          command: |
-            ./scripts/circleci/add_build_info_json.sh
-            ./scripts/circleci/update_package_versions.sh
-            yarn build
-      - run: echo "experimental" >> build/RELEASE_CHANNEL
-      - persist_to_workspace:
-          root: build
-          paths:
-            - RELEASE_CHANNEL
-            - facebook-www
-            - facebook-react-native
-            - facebook-relay
-            - node_modules
-            - react-native
-            - dist
-            - sizes/*.json
 
   yarn_build_combined:
     docker: *docker