[MM-16162] migrate Team.SearchOpen to Sync by default (#11398)

* [MM-16162] migrate Team.SearchOpen to Sync by default

* [MM-16162] fix error

* [MM-16162] update the mocked stores, fix slight error

store/sqlstore/team_store.go

@@ -319,17 +319,14 @@ func (s SqlTeamStore) SearchAll(term string) ([]*model.Team, *model.AppError) {
 	return teams, nil
 }
 
-func (s SqlTeamStore) SearchOpen(term string) store.StoreChannel {
-	return store.Do(func(result *store.StoreResult) {
-		var teams []*model.Team
+func (s SqlTeamStore) SearchOpen(term string) ([]*model.Team, *model.AppError) {
+	var teams []*model.Team
 
-		if _, err := s.GetReplica().Select(&teams, "SELECT * FROM Teams WHERE Type = 'O' AND AllowOpenInvite = true AND (Name LIKE :Term OR DisplayName LIKE :Term)", map[string]interface{}{"Term": term + "%"}); err != nil {
-			result.Err = model.NewAppError("SqlTeamStore.SearchOpen", "store.sql_team.search_open_team.app_error", nil, "term="+term+", "+err.Error(), http.StatusInternalServerError)
-			return
-		}
+	if _, err := s.GetReplica().Select(&teams, "SELECT * FROM Teams WHERE Type = 'O' AND AllowOpenInvite = true AND (Name LIKE :Term OR DisplayName LIKE :Term)", map[string]interface{}{"Term": term + "%"}); err != nil {
+		return nil, model.NewAppError("SqlTeamStore.SearchOpen", "store.sql_team.search_open_team.app_error", nil, "term="+term+", "+err.Error(), http.StatusInternalServerError)
+	}
 
-		result.Data = teams
-	})
+	return teams, nil
 }
 
 func (s SqlTeamStore) SearchPrivate(term string) ([]*model.Team, *model.AppError) {