[Improvement-18056] Clean up unused methods and classes in the dolphinschudler-api module#18134

SbloodyS merged 6 commits intoapache:devapache/dolphinscheduler:devfrom

njnu-seafish:Improvement-18056-api-sycnjnu-seafish/dolphinscheduler:Improvement-18056-api-sycCopy head branch name to clipboard