Chore: Remove outdated code from AM Statefulset generation (prometheu…

…s-operator#7147)

pkg/alertmanager/statefulset.go

@@ -616,12 +616,8 @@ func makeStatefulSetSpec(logger *slog.Logger, a *monitoringv1.Alertmanager, conf
 		volumes = append(volumes, configVol...)
 		amVolumeMounts = append(amVolumeMounts, configMount...)
 
-		// To avoid breaking users deploying an old version of the config-reloader image.
-		// TODO: remove the if condition after v0.72.0.
-		if a.Spec.Web != nil {
-			configReloaderWebConfigFile = confArg.Value
-			configReloaderVolumeMounts = append(configReloaderVolumeMounts, configMount...)
-		}
+		configReloaderWebConfigFile = confArg.Value
+		configReloaderVolumeMounts = append(configReloaderVolumeMounts, configMount...)
 	}
 
 	finalSelectorLabels := config.Labels.Merge(podSelectorLabels)

pkg/alertmanager/statefulset_test.go

@@ -645,6 +645,7 @@ func TestMakeStatefulSetSpecNotificationTemplates(t *testing.T) {
 
 	expectedArgsConfigReloader := []string{
 		"--listen-address=:8080",
+		"--web-config-file=/etc/alertmanager/web_config/web-config.yaml",
 		"--reload-url=http://localhost:9093/-/reload",
 		"--config-file=/etc/alertmanager/config/alertmanager.yaml.gz",
 		"--config-envsubst-file=/etc/alertmanager/config_out/alertmanager.env.yaml",
@@ -1024,6 +1025,7 @@ func TestConfigReloader(t *testing.T) {
 
 	expectedArgsConfigReloader := []string{
 		"--listen-address=:8080",
+		"--web-config-file=/etc/alertmanager/web_config/web-config.yaml",
 		"--reload-url=http://localhost:9093/-/reload",
 		"--config-file=/etc/alertmanager/config/alertmanager.yaml.gz",
 		"--config-envsubst-file=/etc/alertmanager/config_out/alertmanager.env.yaml",