title: Angular fire auth : delete and logout a specif user with his uid
body: <p>I want to delete a user from the database so i need too logout and delete him from the auth. I use Angular fire auth but i don't know how too do this : </p>
  
  <pre><code>this.afAuth.auth.currentUser.delete().then(() =&gt; {
            this.afAuth.auth.signOut()
          })
  </code></pre>
  
  <p>with a specif uid</p>