7.8 Visualize: error on bar click

[ThomThomson]

Kibana version: 7.8 BC 2

Browser version: Chrome 81

Original install method (e.g. download page, yum, from source, etc.): Cloud

Describe the bug:
When clicking on a segment of a graph with no buckets set up a console error is logged.
This issue affects the following vis types: Horizontal bar, Vertical bar, pie, heatmap, and line.

Steps to reproduce:

1. Create a new visualization of any of the types above
2. Do not add an x-axis bucket
3. Click the value shown

Screenshots (if relevant):

[elasticmachine]

Pinging @elastic/kibana-app (Team:KibanaApp)

[ppisljar]

i think we need to silence that console.log. it should be ok to emit a trigger for which no action is registered (like the one mentioned in this issue). At some point somebody could define a drilldown which will work with this as well, its just that we can't create a filter out of it.

[elasticmachine]

Pinging @elastic/kibana-app-arch (Team:AppArch)