Sample Plugins :: Removed map and gallery controls from kitchensink plugin. These two controls are two tied down to gallery and map module. Further abstraction is needed

See these two issues:

1. https://github.com/elegantthemes/Divi/issues/6999
2. https://github.com/elegantthemes/Divi/issues/7000

If these have been solved, we can consider adding them back to the
sample plugins