Remove multiple steps

.circleci/config.yml

 
-version: 2
+version: 1
 jobs:
   build:  
     macos:
@@ -15,11 +15,6 @@ jobs:
       - run:
           name: npm install
           command: npm install
-  test:
-    macos:
-      xcode: "10.2.1"
-      parallelism: 3
-    steps:
       - run:
           name: iOS unit tests
           command: 'npm run test-unit-ios'
@@ -28,10 +23,4 @@ jobs:
           command: 'npm run test-unit-android'
       - run:
           name: Detox iOS CI
-          command: 'npm run test-e2e-ios-release'
-workflows:
-  version: 2
-  build_and_test:
-    jobs:
-      - build
-      - test
\ No newline at end of file
+          command: 'npm run test-e2e-ios-release'
\ No newline at end of file