Reduce queries after successful project creation. (#4901)

dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/ProjectServiceImpl.java

@@ -97,8 +97,7 @@ public class ProjectServiceImpl extends BaseServiceImpl implements ProjectServic
                 .build();
 
         if (projectMapper.insert(project) > 0) {
-            Project insertedProject = projectMapper.queryByName(name);
+            result.put(Constants.DATA_LIST, project);
-            result.put(Constants.DATA_LIST, insertedProject);
             putMsg(result, Status.SUCCESS);
         } else {
             putMsg(result, Status.CREATE_PROJECT_ERROR);