\App_Config\Sitecore\Experience Editor\Sitecore.ExperienceEditor.Speak.Requests.config configuration file contains declarations of server requests for Sitecore Experience Editor.
The datasource usages account functionality is inside configuration:
<!-- Datasource Usages -->
<request name="ExperienceEditor.Datasources.GetDatasourceUsagesCount" type="Sitecore.ExperienceEditor.Speak.Ribbon.Requests.DatasourceUsages.GetDatasourceUsagesCount, Sitecore.ExperienceEditor.Speak.Ribbon" resolve="true"/>
<request name="ExperienceEditor.Datasources.GetDatasourceUsagesDialog" type="Sitecore.ExperienceEditor.Speak.Ribbon.Requests.DatasourceUsages.GetDatasourceUsagesDialog, Sitecore.ExperienceEditor.Speak.Ribbon" resolve="true"/>
<request name="ExperienceEditor.Datasources.GetDatasourceUsagesDropdown" type="Sitecore.ExperienceEditor.Speak.Ribbon.Requests.DatasourceUsages.GetDatasourceUsagesDropdown, Sitecore.ExperienceEditor.Speak.Ribbon" resolve="true"/>
<request name="ExperienceEditor.Datasources.GetDatasourceUsagesWithVersions" type="Sitecore.ExperienceEditor.Speak.Ribbon.Requests.DatasourceUsages.GetDatasourceUsagesWithVersions, Sitecore.ExperienceEditor.Speak.Ribbon" resolve="true"/>
<request name="ExperienceEditor.Datasources.GetDatasourceUsagesWithLockedStatus" type="Sitecore.ExperienceEditor.Speak.Ribbon.Requests.DatasourceUsages.GetDatasourceUsagesWithLockedStatus, Sitecore.ExperienceEditor.Speak.Ribbon" resolve="true"/>
<request name="ExperienceEditor.Datasources.GetDatasourceUsagesWithFinalWorkflowStep" type="Sitecore.ExperienceEditor.Speak.Ribbon.Requests.DatasourceUsages.GetDatasourceUsagesWithFinalWorkflowStep, Sitecore.ExperienceEditor.Speak.Ribbon" resolve="true"/>
<!-- Datasource Usages -->
You need to look on GetDatasourceUsagesCount .
You can also try too look on frontend side to disabled the call which show you the number of Datasource usages.
You have to edit: \sitecore\shell\Applications\Page Modes\ChromeControls.js
and you need to update the function renderDatasourceUsagesCommand
Your function will be:
renderDatasourceUsagesCommand: function () {
var container = $sc("");
return container;
}