## Is your feature request related to a problem?

As a team accumulates data, they will have events/properties that are no longer in use that clutter their app.

Example from our team:
![image](https://user-images.githubusercontent.com/148820/143202334-42d73ab6-13be-4661-ba7a-83c86788b9e8.png)


## Describe the solution you'd like

Under event/properties stats allow 'hiding' events/properties from view.

## Describe alternatives you've considered

Alternatively, go the route of "verified" events/properties (as He@p) does - show those first. See also https://help.heap.io/category/heap-administration/data-governance/

## Additional context

Note: Existing reports, etc should still work well even with 'removed' events/properties.

Related: https://github.com/PostHog/posthog/issues/7126

#### *Thank you* for your feature request – we love each and every one!

posthog/api/property_definition.py
id = self.kwargs["id"]
        if self.request.user.organization.is_feature_available(AvailableFeature.INGESTION_TAXONOMY):  
            try:
                from ee.models.property_definition import EnterprisePropertyDefinition
            except ImportError:
                pass
            else:
                enterprise_property = EnterprisePropertyDefinition.objects.filter(id=id).first()
                if enterprise_property:
                    return enterprise_property
                non_enterprise_property = PropertyDefinition.objects.get(id=id)
                new_enterprise_property = EnterprisePropertyDefinition(
                    propertydefinition_ptr_id=non_enterprise_property.id, description=""
                )
                new_enterprise_property.__dict__.update(non_enterprise_property.__dict__)
                new_enterprise_property.save()
                return new_enterprise_property
        return PropertyDefinition.objects.get(id=id)
    @extend_schema(parameters=[PropertyDefinitionQuerySerializer])
    def list(self, request, *args, **kwargs):
        return super().list(request, *args, **kwargs)