Revert "Fix an actions schedule bug (#28942)"

This reverts commit adc3598a75.

modules/actions/workflows.go

@@ -149,41 +149,6 @@ func DetectWorkflows(
 	return workflows, schedules, nil
 }
 
-func DetectScheduledWorkflows(gitRepo *git.Repository, commit *git.Commit) ([]*DetectedWorkflow, error) {
-	entries, err := ListWorkflows(commit)
-	if err != nil {
-		return nil, err
-	}
-
-	wfs := make([]*DetectedWorkflow, 0, len(entries))
-	for _, entry := range entries {
-		content, err := GetContentFromEntry(entry)
-		if err != nil {
-			return nil, err
-		}
-
-		// one workflow may have multiple events
-		events, err := GetEventsFromContent(content)
-		if err != nil {
-			log.Warn("ignore invalid workflow %q: %v", entry.Name(), err)
-			continue
-		}
-		for _, evt := range events {
-			if evt.IsSchedule() {
-				log.Trace("detect scheduled workflow: %q", entry.Name())
-				dwf := &DetectedWorkflow{
-					EntryName:    entry.Name(),
-					TriggerEvent: evt,
-					Content:      content,
-				}
-				wfs = append(wfs, dwf)
-			}
-		}
-	}
-
-	return wfs, nil
-}
-
 func detectMatched(gitRepo *git.Repository, commit *git.Commit, triggedEvent webhook_module.HookEventType, payload api.Payloader, evt *jobparser.Event) bool {
 	if !canGithubEventMatch(evt.Name, triggedEvent) {
 		return false