Fix drafts not working when typing indicators are disabled.

app/src/main/java/org/thoughtcrime/securesms/conversation/ConversationParentFragment.java

@@ -838,9 +838,7 @@ public class ConversationParentFragment extends Fragment
           });
         }
 
-        if (TextSecurePreferences.isTypingIndicatorsEnabled(ApplicationDependencies.getApplication())) {
         composeText.addTextChangedListener(typingTextWatcher);
-        }
         composeText.setSelection(composeText.length(), composeText.length());
       }
     });