title: Android Room @Delete with parameters
body: <p>I know I can't use <code>DELETE</code> in a query (that is a shame by the way), I will get the following error:</p>
  
  <pre><code>&lt;i&gt;Error:error: Observable query return type (LiveData, Flowable etc) can only be used with SELECT queries that directly or indirectly (via @Relation, for example) access at least one table.&lt;/i&gt;
  </code></pre>
  
  <p>But I can't use <code>@Delete(WHERE... xxx)</code>
  So how do I delete a specific row by a parameter?</p>