Enhancement/publisher: Remove "hit play to continue" label on continue

[BigRoy]

Changelog Description

Remove "hit play to continue" message on continue so that it doesn't show anymore when play was clicked.

Additional info

Resolve issue described here

Testing notes:

1. Click validate
2. Wait for it to finish validation successfully
3. Click publish
4. Now while it is publishing it will be expanded (that's correct) and it should not show the subtitle (second line in the message) Hit publish (play button) to continue) because it's currently playing/publishing.

This can also be reproduced by:

1. Click validate
2. Stop/Pause the validation
3. Continue the validation or publishing
4. Now while it is publishing it will be expanded (that's correct) and it should not show the subtitle (second line in the message) Hit publish (play button) to continue) because it's currently playing/publishing.

[iLLiCiTiT]

LGTM