Describe the feature:
Disable tooltips appearing when hovering on diagrams.

Describe a specific use case for the feature:
The tooltips are practically redundant information, the legend already contains most of the data anyway. But more importantly, the tooltips' design causes disturbance in the field of view and fast mouse movements may cause dizzynes. Additionally, under some circumstances, the appearing tooltips cause the change of the layout of the diagrams and mouse movements result in shaking content on the page.

In general, the tooltip seems to be used in a kind of abusive way. Tooltips should be visible only if the user may need them, e.g.: i) hovering over the data point, ii) selecting a data point. But even in this case, the tooltip must disappear after movement.

Workaround is to turn them off by scripting: https://discuss.elastic.co/t/disable-popups-on-kibana-visualizations/271064