[6.0] remove deprecated string - redo #45565

[heelc29]

Redo Pull Request for PR #45565 .

Summary of Changes

apply commit 0d17b68 again

looks like something go wrong in original PR @Bodge-IT

file in 5.4-dev

joomla-cms/administrator/language/en-GB/com_joomlaupdate.ini

Lines 203 to 204 in 2acc28f

	; Deprecated, will be removed with 6.0
	COM_JOOMLAUPDATE_VIEW_DEFAULT_UPDATES_INFO_TESTING="You are on the &quot;%s&quot; update channel. This channel is designed for testing new releases and fixes in Joomla.<br>It is only intended for JBS (Joomla Bug Squad&trade;) members and others within the Joomla community who are testing. Do not use this setting on a production site."

[brianteeman]

I have tested this item ✅ successfully on bb857fc

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[richard67]

I have tested this item ✅ successfully on bb857fc

Code review.

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/45834.}

[richard67]

RTC

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/45834.}

[softforge]

Thanks to all involved