Removed Post Priority feature flag (#23735)

* Removed post priority feature flag

* linting

* Update feature_flags.go

server/config/client.go

@@ -214,7 +214,7 @@ func GenerateClientConfig(c *model.Config, telemetryID string, license *model.Li
 			props["EnableCustomGroups"] = strconv.FormatBool(*c.ServiceSettings.EnableCustomGroups)
 		}
 
-		if (license.SkuShortName == model.LicenseShortSkuProfessional || license.SkuShortName == model.LicenseShortSkuEnterprise) && c.FeatureFlags.PostPriority {
+		if license.SkuShortName == model.LicenseShortSkuProfessional || license.SkuShortName == model.LicenseShortSkuEnterprise {
 			props["PostAcknowledgements"] = "true"
 		}
 	}