These two methods add unnecessary indirection to allow the Special:MobileOptions page to disable transformations that do not even run per the $isSpecialPage check inside the hook here:
https://gerrit.wikimedia.org/g/mediawiki/extensions/MobileFrontend/+/decbf33c9d73b09111134ef7ad46c075959f9a7b/includes/ExtMobileFrontend.php#96
sign off
- the query https://codesearch.wmcloud.org/search/?q=getContentTransformations&i=nope&files=&repos= returns no results
- the query https://codesearch.wmcloud.org/search/?q=setContentTransformations&i=nope&files=&repos= returns no results
- the query https://codesearch.wmcloud.org/search/?q=contentTransformations&i=nope&files=&repos= returns no results