[native filter] Remove parent filter cause incorrect state of child filter

[graceguo-supercat]

Expected results

Remove parent filter should update all its children filters to top level filters.

How to reproduce the bug

1. create dashboard from baby_names dataset. Add a few filters. For example, add Gender filter, State filter, Number filter, and set number filter's parent filter is State filter.
2. Load dashboard.
3. Remove State filter.
4. In dashboard filter bar, you don't see State filter or Number filter. But number filter is still in dashboard's metadata, and it also shows in Filter Sets:

    {
      "id": "NATIVE_FILTER-1VxgvI-iF",
      "controlValues": {
        "multiSelect": true,
        "enableEmptyFilter": false,
        "defaultToFirstItem": false,
        "inverseSelection": false,
        "searchAllOptions": false
      },
      "name": "Number Filter",
      "filterType": "filter_select",
      "targets": [{"datasetId": 2, "column": {"name": "num"}}],
      "defaultDataMask": {
        "extraFormData": {},
        "filterState": {},
        "ownState": {}
      },
      "cascadeParentIds": ["NATIVE_FILTER-wvlKEa4U5"],
      "scope": {"rootPath": ["ROOT_ID"], "excluded": []},
      "chartsInScope": [133],
      "tabsInScope": []
    }

Environment

latest master

Additional context

cc @m-ajay @michael-s-molina @junlincc