[CRUD] disable user change slices from dashboardmodelview (#5217)
[CRUD] disable user change slices from dashboardmodelview (#5217)


apache/incubator-superset,dmigo/incubator-superset,timifasubaa/incubator-superset,mistercrunch/panoramix,airbnb/superset,airbnb/caravel,airbnb/caravel,timifasubaa/incubator-superset,dmigo/incubator-superset,apache/incubator-superset,zhouyao1994/incubator-superset,zhouyao1994/incubator-superset,mistercrunch/panoramix,apache/incubator-superset,apache/incubator-superset,zhouyao1994/incubator-superset,mistercrunch/panoramix,airbnb/caravel,dmigo/incubator-superset,timifasubaa/incubator-superset,timifasubaa/incubator-superset,apache/incubator-superset,mistercrunch/panoramix,dmigo/incubator-superset,zhouyao1994/incubator-superset,airbnb/caravel,airbnb/superset,airbnb/superset,airbnb/superset,zhouyao1994/incubator-superset