Infer contact multi-select allowing assertion removal.

Hide count on invite friends.

Fixes #10125

app/src/main/java/org/thoughtcrime/securesms/PushContactSelectionActivity.java

@@ -42,7 +42,6 @@ public class PushContactSelectionActivity extends ContactSelectionActivity {
 
   @Override
   protected void onCreate(Bundle icicle, boolean ready) {
-    getIntent().putExtra(ContactSelectionListFragment.MULTI_SELECT, true);
     super.onCreate(icicle, ready);
 
     initializeToolbar();