Migrate User.GetEtagForAllProfiles to sync by default (#11509)

app/user.go

@@ -460,7 +460,7 @@ func (a *App) GetUsersPage(options *model.UserGetOptions, asAdmin bool) ([]*mode
 }
 
 func (a *App) GetUsersEtag(restrictionsHash string) string {
-	return fmt.Sprintf("%v.%v.%v.%v", (<-a.Srv.Store.User().GetEtagForAllProfiles()).Data.(string), a.Config().PrivacySettings.ShowFullName, a.Config().PrivacySettings.ShowEmailAddress, restrictionsHash)
+	return fmt.Sprintf("%v.%v.%v.%v", a.Srv.Store.User().GetEtagForAllProfiles(), a.Config().PrivacySettings.ShowFullName, a.Config().PrivacySettings.ShowEmailAddress, restrictionsHash)
 }
 
 func (a *App) GetUsersInTeam(options *model.UserGetOptions) ([]*model.User, *model.AppError) {