## 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/event_definition.py
self,
    ) -> Tuple[str, Literal["ASC", "DESC"]]:
        order_direction: Literal["ASC", "DESC"]
        ordering = self.request.GET.get("ordering")
        if ordering and ordering.replace("-", "") in self.ordering_fields:
            order = ordering.replace("-", "")
            if "-" in ordering:
                order_direction = "DESC"
            else:
                order_direction = "ASC"
        else:
            order = "volume_30_day"
            order_direction = "DESC"
        return order, order_direction
    def get_object(self):