title: React-Native unnecessary Android user permissions automatically added on build?
body: <p>It seems like Read/Write external storage and Read phone state permissions are automatically added to the manifest on building the android apk. Are these necessary for all React Native android apps? Is there any way to remove these permissions?</p>
  
  <p>Looking at the <strong>build/output/logs/manifest-merger-debug-report.txt</strong> I see:</p>
  
  <pre><code>android:uses-permission#android.permission.READ_EXTERNAL_STORAGE
  IMPLIED from `/***/android/app/src/main/AndroidManifest.xml:1:1-22:12 reason: org.webkit.android_jsc` requested WRITE_EXTERNAL_STORAGE
  </code></pre>
  
  <p>It feels weird that I'll see these permissions being requested if I install the app from the Play store if I'm not using them.</p>