chore: disable template pre-fetching (#2327)

Disable the template pre-fetching at startup.

Co-authored-by: Chris Stockton <chris.stockton@supabase.io>

Author: cstockton

cmd/serve_cmd.go

@@ -63,17 +63,6 @@ func serve(ctx context.Context) {
 	defer wg.Wait() // Do not return to caller until this goroutine is done.
 
 	mrCache := templatemailer.NewCache()
-	if !config.Mailer.TemplateReloadingEnabled {
-		// If template reloading is disabled attempt an initial reload at
-		// startup for fault tolerance.
-		wg.Add(1)
-		go func() {
-			defer wg.Done()
-
-			mrCache.Reload(ctx, config)
-		}()
-	}
-
 	limiterOpts := api.NewLimiterOptions(config)
 	initialAPI := api.NewAPIWithVersion(
 		config, db, utilities.Version,