Alan Guo Xiang Tan 30e4ebd19b
Revert "DEV: Update checks in chat channel and thread page objects (#21875)" (#21883)
This reverts commit ddf4ecba04f3c6396615506ec595650f14986758.

Causing a flaky test to appear:

```
main $ LOAD_PLUGINS=1 rspec plugins/chat/spec/system/chat/composer/shortcuts/channel_spec.rb

Randomized with seed 17765
.....F..

Failures:

  1) Chat | composer | shortcuts | channel when using ArrowUp when last message is staged does not edit a message
     Failure/Error: channel_page.send_message
       expected `#<PageObjects::Components::Chat::Messages:0x00007fe823ac1710 @context=".chat-channel">.has_message?({:persisted=>true, :text=>"2"})` to be truthy, got false

     [Screenshot Image]: /home/tgxworld/work/discourse/tmp/capybara/failures_r_spec_example_groups_chat_composer_shortcuts_channel_when_using_arrow_up_when_last_message_is_staged_does_not_edit_a_message_148.png
```
2023-06-01 16:59:03 +08:00
..
2023-05-16 19:40:01 +02:00
2023-05-31 09:15:16 +02:00