[v10.2.x] Docs: remove tooltip-mode information (#80044)

Docs: remove tooltip-mode information (#79985)

Removed tooltip-mode shared file link

(cherry picked from commit 6da0ce5e01)

Co-authored-by: Isabel <76437239+imatwawana@users.noreply.github.com>

docs/sources/panels-visualizations/visualizations/histogram/index.md

@@ -71,8 +71,6 @@ Transparency of the gradient is calculated based on the values on the Y-axis. Th
 
 Gradient color is generated based on the hue of the line color.
 
-{{< docs/shared lookup="visualizations/tooltip-mode.md" source="grafana" version="<GRAFANA VERSION>" >}}
-
 {{< docs/shared lookup="visualizations/legend-mode.md" source="grafana" version="<GRAFANA VERSION>" >}}
 
 ### Legend calculations