Revert "Mm 30807 granular data retention scaffold (#16891)" (#17437)

This reverts commit 3ea75332e7.

model/team.go

@@ -42,7 +42,6 @@ type Team struct {
 	LastTeamIconUpdate int64   `json:"last_team_icon_update,omitempty"`
 	SchemeId           *string `json:"scheme_id"`
 	GroupConstrained   *bool   `json:"group_constrained"`
-	PolicyID           *string `json:"policy_id" db:"-"`
 }
 
 type TeamPatch struct {