The "No results" screen, that should be shown for visualizations, if no data has been found, requires some refactoring and fixing.

There are currently two implementations - one for vislib visualizations and one in <visualization> for all visualizations. The later doesn't work properly. We should at least fix the following issues:

• Only have one implementation, not two
• <visualization> only works if there is no response handler. Instead the response handler should tell us if there has been results.
• Remove the dead vis.params.handleNoResults check. This isn't used anywhere.

I think a visualization type should still be able to specify whether it wants to handle no data scenario itself or want Kibana to show the default message.

This would also fix #16420