Remove unnecessary goroutine (#16080)

Co-authored-by: techknowlogick <techknowlogick@gitea.io>

services/pull/check.go

@@ -28,7 +28,6 @@ var prQueue queue.UniqueQueue
 
 // AddToTaskQueue adds itself to pull request test task queue.
 func AddToTaskQueue(pr *models.PullRequest) {
-	go func() {
 	err := prQueue.PushFunc(strconv.FormatInt(pr.ID, 10), func() error {
 		pr.Status = models.PullRequestStatusChecking
 		err := pr.UpdateColsIfNotMerged("status")
@@ -42,7 +41,6 @@ func AddToTaskQueue(pr *models.PullRequest) {
 	if err != nil && err != queue.ErrAlreadyInQueue {
 		log.Error("Error adding prID %d to the test pull requests queue: %v", pr.ID, err)
 	}
-	}()
 }
 
 // checkAndUpdateStatus checks if pull request is possible to leaving checking status,