remove unused @requires from all jsdoc

[nbogie]

Resolves #8628

Changes:

changes

• removes all @requires lines from jsdoc under src/
• removes mention of that tag from the reference guide

testing

• npm run docs runs ok.

• p5.js-website reference generation: runs and presents ok

• generated type declarations and parameterData.json all look ok (contents are the same except ordering has changed).

• npm run test:types passes

note: comparing two versions of parameterData.json by first sorting all arrays can be done like this (assuming the jq utility is installed):

diff <(jq -S 'walk(if type == "array" then sort else . end)' file1.json) \
     <(jq -S 'walk(if type == "array" then sort else . end)' file2.json) 

misc notes

remove with find + sed:

find src -type f \( -name "*.js" -o -name "*.ts" \) -exec sed -i '' '/^[[:space:]]*\*[[:space:]]*@requires/d' {} +

...then visually inspect changes with git diff

PR Checklist

• npm run lint passes
• [Inline reference] is included / updated
• [Unit tests] are included / updated - three visual tests fail (same before and after)

[nbogie]

tested website generation too, now. (was blocked by #1321)