[MM-16164] Migrate "Team.GetAll" to Sync by default (#11108)

* [MM-16164] Migrate "Team.GetAll" to Sync by default

* Refactor to make code shorter and more descriptive

app/team.go

@@ -609,11 +609,7 @@ func (a *App) GetTeamByInviteId(inviteId string) (*model.Team, *model.AppError)
 }
 
 func (a *App) GetAllTeams() ([]*model.Team, *model.AppError) {
-	result := <-a.Srv.Store.Team().GetAll()
-	if result.Err != nil {
-		return nil, result.Err
-	}
-	return result.Data.([]*model.Team), nil
+	return a.Srv.Store.Team().GetAll()
 }
 
 func (a *App) GetAllTeamsPage(offset int, limit int) ([]*model.Team, *model.AppError) {