implement deprecation of SAYALL behaviour for speakTextInfo

[seanbudd]

Link to issue number:

Part of #12123

Implements deprecation announced in: #10878

Summary of the issue:

sayAllHandler was changed to use speakWithoutPauses as a default. Developers wanting to use the original behaviour of
speech.speakTextInfo with reason as SAYALL should use sayAllHandler

Description of how this pull request fixes the issue:

speakTextInfo will no longer send speech through speakWithoutPauses if reason is SAYAll, as sayAllhandler does this manually now.

Testing strategy:

Search the code base for usages of SAYALL and confirm the only ones that are being set are within sayAllHandler, which handles this behaviour and doesn't trigger deprecation warnings.

find . -type f -name '*.py' -exec grep -P "\bSAYALL\b" {} +

Manual testing of "say all" behaviour - such as reading all the text or controls of a document may help confirm this and would trigger the deprecations warnings now if this wasn't handled correctly.

Known issues with pull request:

None

Change log entry:

Developer Changes

- `speakTextInfo` will no longer send speech through `speakWithoutPauses` if reason is `SAYALL`, as `sayAllhandler` does this manually now. (#12150)

Code Review Checklist:

• Pull Request description is up to date.
• Unit tests.
• System (end to end) tests.
• Manual tests.
• User Documentation.
• Change log entry.
• Context sensitive help for GUI changes.

[feerrenrut]

Looks good! Thanks @seanbudd