[5.3] Remove Cassiopeia color overrides

[brianteeman]

Summary of Changes

Remove the extra color related css from cassiopeia as they are not needed

See #39379 (comment)

As far as I can tell these extra lines are not needed at all with BS 5.3

Testing Instructions

Create an article with the following

<p><span class="text text-secondary">text-secondary</span> <span class="text text-primary">text-primary</span> <span class="text text-info">text-info</span> <span class="text text-success">text-success</span> <span class="text text-warning">text-warning</span> <span class="text text-danger">text-danger</span></p>
<p class="h1">Example heading <span class="badge bg-primary">bg-primary</span></p>
<p class="h2">Example heading <span class="badge bg-secondary">bg-secondary</span></p>
<p class="h3">Example heading <span class="badge bg-success">bg-success</span></p>
<p class="h4">Example heading <span class="badge bg-danger">bg-danger</span></p>
<p class="h5">Example heading <span class="badge bg-warning">bg-warning</span></p>
<p class="h6">Example heading <span class="badge bg-dark">bg-dark</span></p>

as it is an scss change either use a prebuilt package or npm run build:css

Actual result BEFORE and AFTER applying this Pull Request

Expected result AFTER applying this Pull Request

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:

• No documentation changes for manual.joomla.org needed

[fgsw]

I have tested this item ✅ successfully on 3d5593c

Before	After

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[viocassel]

I have tested this item ✅ successfully on 3d5593c

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[alikon]

RTC

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