Instructions paragraph cleanup

kfranqueiro commented 5 months ago

Resolves #3918.

There are multiple commits in this PR, each grouping a subset of removals:

Removals of entire <p class="instructions"> paragraphs having no effect on output
- Some of these contained boilerplate from the original techniques or understanding template; others had content redundant of information that the build system automatically generates. (There was one instance of the latter in label-in-name.html that did not even have class="instructions", and was thus already causing repetition of auto-generated content.)
- Previews: ARIA24, SCR39, F102, F105, G211, G212, G217, G219, 2.3.3, 2.5.2, 2.5.3, 2.5.5,
Removals of class="instructions" from paragraphs with custom content that should not have had this class; these were previously absent from build output but will now be present.
- To be clear, this PR does not add any content that was not already previously authored and reviewed.
- Previews: C39, F97, G211, G217, G218, G220, H100

In cases where removal of these paragraphs clearly yielded an empty section, I have removed the entire section. (In some cases, these sections were already commented out.) This overlaps a bit with #3927; I have updated the log there to exclude what's already handled in this PR.

Note: as part of this PR, I have removed identify-changes.html and interruptions-minimum.html from understanding/21, as both of these seemed to be unused and largely contained template boilerplate. These removals do not affect build output at all.

w3cbot commented 5 months ago

kfranqueiro marked as non substantive for IPR from ash-nazg.

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w3c / wcag