TeamStore migration part 2 (#15396)

* Migration completed

* Fix tests

* Reduce to one line

* Fix: change to plain error

* Fix imports

* Trigger CI

* Fix i18

* Fix merge with master

* Trigger CI

store/searchlayer/team_layer.go

@@ -21,7 +21,7 @@ func (s SearchTeamStore) SaveMember(teamMember *model.TeamMember, maxUsersPerTea
 	return member, err
 }
 
-func (s SearchTeamStore) UpdateMember(teamMember *model.TeamMember) (*model.TeamMember, *model.AppError) {
+func (s SearchTeamStore) UpdateMember(teamMember *model.TeamMember) (*model.TeamMember, error) {
 	member, err := s.TeamStore.UpdateMember(teamMember)
 	if err == nil {
 		s.rootStore.indexUserFromID(member.UserId)
@@ -29,7 +29,7 @@ func (s SearchTeamStore) UpdateMember(teamMember *model.TeamMember) (*model.Team
 	return member, err
 }
 
-func (s SearchTeamStore) RemoveMember(teamId string, userId string) *model.AppError {
+func (s SearchTeamStore) RemoveMember(teamId string, userId string) error {
 	err := s.TeamStore.RemoveMember(teamId, userId)
 	if err == nil {
 		s.rootStore.indexUserFromID(userId)