Removed Flow (and its tooling) from the source code (#2385)

* Removed Flow

* Update packages/jest/src/utils.js

Co-authored-by: Mateusz Burzyński <[email protected]>

* Update packages/react/src/theming.js

Co-authored-by: Mateusz Burzyński <[email protected]>

* Update site/src/utils/markdown-styles.js

Co-authored-by: Mateusz Burzyński <[email protected]>

* Fix markdown-styles.js

* Title.js

* One more formatting, and a FlowFixMe removal

* Updated a few snapshots, and yarn.lock

Co-authored-by: Mateusz Burzyński <[email protected]>

Author: Josh Goldberg

.eslintignore

@@ -4,5 +4,4 @@ coverage/
 node_modules/
 stylis.min.js
 /demo/dist
-/packages/site/build
-flow-typed/
+/packages/site/build

.flowconfig

@@ -50,37 +50,6 @@ jobs:
         uses: codecov/codecov-action@v1
         if: ${{ matrix.platform == 'ubuntu-latest' && always() }}
 
-  flow:
-    name: Flow
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@main
-
-      - name: Set Node.js 12.x
-        uses: actions/setup-node@main
-        with:
-          node-version: 12.x
-
-      - name: Get yarn cache directory path
-        id: yarn-cache-dir-path
-        run: echo "::set-output name=dir::$(yarn cache dir)"
-
-      - uses: actions/cache@v2
-        id: yarn-cache
-        with:
-          path: |
-            ${{ steps.yarn-cache-dir-path.outputs.dir }}
-            node_modules
-          key: ${{ runner.os }}-yarn-${{ hashFiles('yarn.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-yarn-
-
-      - name: Install Dependencies
-        run: yarn
-
-      - name: Check Types
-        run: yarn flow:check
-
   test_dist:
     name: Test Dist
     runs-on: ubuntu-latest

.flowconfig-ci

@@ -4,6 +4,3 @@ overrides:
 - files: "docs/*.md"
   options:
     printWidth: 60
-- files: "*.js"
-  options:
-    parser: flow

.github/workflows/main.yml

@@ -1,4 +1,3 @@
-// @flow
 /* eslint-env jest */
 
 let components = [

.prettierrc.yaml

@@ -1,2 +1 @@
-// @flow
 export * from 'react-primitives/lib/index.web'

__mocks__/react-native.js

@@ -29,7 +29,6 @@
     - source-maps
     - testing
     - typescript
-    - flow
 
 # This loads the READMEs instead of files in docs/
 - title: Packages