Query: Bulk Delete on result of First family in projection

```C#
[ConditionalTheory]
[MemberData(nameof(IsAsyncData))]
public virtual Task Delete_GroupBy_Where_Select(bool async)
=> AssertDelete(
async,
ss => ss.Set()
.GroupBy(od => od.OrderID)
.Where(g => g.Count() > 5)
.Select(g => g.First()),
rowsAffectedCount: 284);
```

This causes the shaper to be a projection which is entity. Even if we apply projection it causes a subquery in SelectExpression. We can come up with some SQL to represent this (though our current structure is not supported in delete operation and not easy way to convert to subquery)