title: RoomDatabase Callback deprecated
body: <p>On building the app I get these:</p>
  
  <pre><code>[deprecation] mCallbacks in RoomDatabase has been deprecated
  </code></pre>
  
  <p>Not sure how to fix it. Here're the dependencies:</p>
  
  <pre><code>implementation "androidx.room:room-runtime:2.1.0-alpha04"
  implementation 'androidx.room:room-rxjava2:2.1.0-alpha04'
  annotationProcessor "androidx.room:room-compiler:2.1.0-alpha04"
  </code></pre>
  
  <p>Is it because I'm running the alpha version?</p>