Hi there,
1. You can avoid loading this file if you don’t use the top bar, footer bar or footer widget areas. Otherwise, it’s necessary unless you want those areas to be unstyled.
2. You can avoid loading this file if you turn off the Navigation Search option.
3. You can’t avoid this file, it’s necessary for the mobile navigation and some accessibility features.
The .entry-summary
element isn’t remove-able as of right now – that’s something we’d like to do in the near future. It can be easily hidden with CSS for now.