This is not possible, require
is a PHP language construct, it’s not a WordPress function, and can’t be filtered or overriden via WordPress APIs
These are your options:
If the functionality you want to remove is implemented via actions and filters then:
- Unhook the things you don’t want from that file
- Add new hooks that happen after them that attempt to undo what they did
Otherwise, your only options are to:
- Modify the parent theme
- Fork the parent theme
- Choose a new parent theme
- Raise a support ticket with the authors to get it changed to support actions and filters
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