chore: delete flow types from the repo (#8061)

.circleci/config.yml

@@ -27,7 +27,7 @@ jobs:
       - run: yarn --no-progress --frozen-lockfile
       - save-cache: *save-cache
       - run: echo server.max_workers=1 >> .flowconfig
-      - run: yarn lint --format junit -o reports/junit/js-lint-results.xml && yarn typecheck && yarn lint-es5-build --format junit -o reports/junit/js-es5-lint-results.xml  && yarn lint:md:ci && yarn check-copyright-headers
+      - run: yarn lint --format junit -o reports/junit/js-lint-results.xml && yarn lint-es5-build --format junit -o reports/junit/js-es5-lint-results.xml  && yarn lint:md:ci && yarn check-copyright-headers
       - store_test_results:
           path: reports/junit
 

.eslintrc.js

@@ -5,8 +5,6 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-const customImportResolver = require.resolve('./eslintImportResolver');
-
 module.exports = {
   extends: [
     './packages/eslint-config-fb-strict/index.js',
@@ -66,31 +64,11 @@ module.exports = {
       },
     },
     {
-      files: ['types/**/*', 'packages/jest-types/**/*'],
+      files: ['packages/jest-types/**/*'],
       rules: {
         'import/no-extraneous-dependencies': 0,
       },
     },
-    {
-      files: [
-        'e2e/__tests__/**/*.js',
-        'packages/babel-jest/**/*.test.js',
-        'packages/babel-plugin-jest-hoist/**/*.test.js',
-        'packages/babel-preset-jest/**/*.test.js',
-        'packages/eslint-config-fb-strict/**/*.test.js',
-        'packages/eslint-plugin-jest/**/*.test.js',
-        'packages/jest-changed-files/**/*.test.js',
-        'packages/jest-circus/**/*.test.js',
-        'packages/jest-diff/**/*.test.js',
-        'packages/jest-docblock/**/*.test.js',
-        'packages/jest-editor-support/**/*.test.js',
-        'packages/jest/**/*.test.js',
-        'packages/pretty-format/**/*.test.js',
-      ],
-      rules: {
-        'flowtype/require-valid-file-annotation': [2, 'always'],
-      },
-    },
     {
       files: [
         'website/**',
@@ -133,11 +111,6 @@ module.exports = {
   },
   settings: {
     'import/resolver': {
-      [customImportResolver]: {
-        moduleNameMapper: {
-          '^types/(.*)': './types/$1',
-        },
-      },
       'eslint-import-resolver-typescript': true,
     },
   },

CHANGELOG.md

@@ -6,6 +6,8 @@
 
 ### Chore & Maintenance
 
+- `[*]` Remove flow from code base ([#8061](https://github.com/facebook/jest/pull/8061))
+
 ### Performance
 
 ## 24.5.0