allow trigger delete if feed has not code

Author: mdeuser

commands/trigger.go

@@ -292,10 +292,14 @@ var triggerDeleteCmd = &cobra.Command{
 					//      "could not find trigger /NAMESPACE_ID/TRIGGER_NAME in the database"
 					// OR if the feed action is not present, there's no way to clean up the feed
 					//     "The requested resource does not exist"
+					// likewise, if the feed action has no code, there's no way to clean up the feed
+					//     "Missing main/no code to execute"
 					if strings.Contains(err.Error(), "could not find trigger") {
 						whisk.Debug(whisk.DbgWarn, "trigger feed is already deleted for trigger %s\n", qualifiedName.GetEntityName())
 					} else if strings.Contains(err.Error(), "The requested resource does not exist") {
 						whisk.Debug(whisk.DbgWarn, "trigger feed action '%s' does not exist\n", fullFeedName)
+					} else if strings.Contains(err.Error(), "Missing main/no code to execute") {
+						whisk.Debug(whisk.DbgWarn, "trigger feed action '%s' does not contain valid code\n", fullFeedName)
 					} else {
 						errStr := wski18n.T("Unable to delete trigger '{{.name}}': {{.err}}",
 							map[string]interface{}{"name": qualifiedName.GetEntityName(), "err": err})