fix(lint): Fixes auth-server jest workers lint

Author: vbudhram

packages/fxa-auth-server/jest.config.js

@@ -22,7 +22,6 @@ module.exports = {
   testTimeout: 10000,
   maxWorkers: 4,
   clearMocks: true,
-  maxWorkers: 4,
   workerIdleMemoryLimit: '512MB',
   setupFiles: ['<rootDir>/jest.setup.js', '<rootDir>/jest.setup-proxyquire.js'],
   testPathIgnorePatterns: ['/node_modules/'],