Straightforward deploy approach

Summary:
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**Summary**

As rafeca mentioned on Discord channel, `deploy` script fails. This PR is composed with intention to fix this error.

**Test plan**

- Try to deploy a new version using CircleCI config from this PR
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Closes https://github.com/facebook/metro-bundler/pull/94

Reviewed By: mjesun

Differential Revision: D6405189

Pulled By: rafeca

fbshipit-source-id: 9adca768044515784474aa6f71ca6f733db5b07e

circle.yml

@@ -10,13 +10,6 @@ aliases:
       - node_modules
     key: dependencies-{{ .Branch }}-{{ checksum "package.json" }}
 
-  - &deploy
-    working_directory: packages/metro-bundler
-    steps:
-      - run: npm run prepare-release
-      - run: npm publish
-      - run: npm run cleanup-release
-
 version: 2
 jobs:
   test-node-9:
@@ -64,7 +57,15 @@ jobs:
           working_directory: packages/metro-bundler
           command: yarn --no-progress
       - save-cache: *save-cache
-      - deploy: *deploy
+      - run:
+          working_directory: ~/metro-bundler/
+          run: yarn build
+      - run:
+          working_directory: packages/metro-bundler
+          command: |
+            yarn prepare-release
+            npm publish
+            yarn cleanup-release
 
 # Workflows enables us to run multiple jobs in parallel
 workflows: