[MM-48542] Removing integration limits (#21282)

* Removing integration limits

* Remove freemium limit test

* Remove test assertion regarding cloud limits

* Remove GetIntegrationsUsage

* Removing integrations usage notifications

* This shouldn't be removed

* Removing client call and websocket event

* Remove old translations

Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

app/usage.go

@@ -10,37 +10,6 @@ import (
 	"github.com/mattermost/mattermost-server/v6/utils"
 )
 
-// CheckFreemiumLimitsForConfigSave returns an error if the configuration being saved violates a cloud plan's limits
-func (a *App) CheckFreemiumLimitsForConfigSave(oldConfig, newConfig *model.Config) *model.AppError {
-	appErr := a.checkIntegrationLimitsForConfigSave(oldConfig, newConfig)
-	if appErr != nil {
-		return appErr
-	}
-
-	return nil
-}
-
-// GetIntegrationsUsage returns usage information on enabled integrations
-func (a *App) GetIntegrationsUsage() (*model.IntegrationsUsage, *model.AppError) {
-	return a.ch.getIntegrationsUsage()
-}
-
-func (ch *Channels) getIntegrationsUsage() (*model.IntegrationsUsage, *model.AppError) {
-	installed, appErr := ch.getInstalledIntegrations()
-	if appErr != nil {
-		return nil, appErr
-	}
-
-	var count = 0
-	for _, i := range installed {
-		if i.Enabled {
-			count++
-		}
-	}
-
-	return &model.IntegrationsUsage{Enabled: count}, nil
-}
-
 // GetPostsUsage returns the total posts count rounded down to the most
 // significant digit
 func (a *App) GetPostsUsage() (int64, *model.AppError) {