Revert "LiveText: pumped generator follow-up (#20216)"

[seanbudd]

This reverts commit 9fe7dde.

Reverts PR

Reverts #20216

Issues fixed

N/A

Issues reopened

N/A

Reason for revert

Introduced hidden config params

Can this PR be reimplemented? If so, what is required for the next attempt

#20216 (comment)

[Copilot]

Pull request overview

This PR reverts the changes introduced by #20216 (commit 9fe7dde9ab1b173d3c03f001bb2704121ac8ad7f) to remove the “hidden config params” it added for terminal live-text handling, restoring the prior behavior and documentation/UI state.

Changes:

• Removes the “Beep for skipped lines” advanced setting from the UI and User Guide.
• Removes hidden terminal config keys (maxNewLines, newLinesBatchSize, beepForSkippedLines) from the config spec and the corresponding runtime usage.
• Restores terminal live-text reporting to use a fixed maximum line cap and a fixed yield cadence (rather than configurable hidden parameters).

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
user_docs/en/userGuide.md	Removes the documented “Beep for skipped lines” advanced setting section.
user_docs/en/changes.md	Updates release notes entry to remove the #20216 reference (revert context).
source/NVDAObjects/behaviors.py	Removes runtime dependence on the hidden terminal config params and returns to a fixed cap/yield approach.
source/gui/settingsDialogs.py	Removes the “Beep for skipped lines” checkbox wiring from Advanced Settings.
source/config/configSpec.py	Removes the hidden [terminals] config keys introduced by #20216.