[6.0] breadcrumbs unused function

[brianteeman]

Updated Pull Request for original PR #33913 .

Summary of Changes

The setSeparator function has not been used in Joomla since the release of 4.0

Testing Instructions

Code review

Link to documentations

Please select:

• Documentation link for docs.joomla.org:

• No documentation changes for docs.joomla.org needed

• Pull Request link for manual.joomla.org: Update removed-backward-incompatibility.md Manual#346

• No documentation changes for manual.joomla.org needed

[laoneo]

Would be nice to have that documented in https://github.com/joomla/Manual/blob/main/migrations/54-60/removed-backward-incompatibility.md.

[fgsw]

I have tested this item ✅ successfully on cf0a43c

Prebuilt package used.

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[brianteeman]

Would be nice to have that documented in https://github.com/joomla/Manual/blob/main/migrations/54-60/removed-backward-incompatibility.md.

done

[alikon]

setting RTC cause it was successfully tested by @Quy too

[alikon]

RTC

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[Bodge-IT]

I have tested this item ✅ successfully on 2ca900c

function removed as documented

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