[INLONG-11751][Manager] Modify doDeleteCheck method verify (#11758)

* [INLONG-11751][Manager] Modify doDeleteCheck method verify

* [INLONG-11751][Manager] Modify doDeleteCheck method verify

* Change to use constant instead of enum

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Co-authored-by: fuweng11 <76141879+fuweng11@users.noreply.github.com>

* Delete GroupMode enum import

* [INLONG-11751][Manager] Fix code format

* [INLONG-11751][Manager] Remove unused enum

* Update inlong-manager/manager-service/src/main/java/org/apache/inlong/manager/service/group/InlongGroupServiceImpl.java

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Co-authored-by: James Zow <v_jweizhao@tencent.com>
Co-authored-by: fuweng11 <76141879+fuweng11@users.noreply.github.com>
Co-authored-by: Charles Zhang <dockerzhang@apache.org>

inlong-manager/manager-service/src/main/java/org/apache/inlong/manager/service/group/InlongGroupServiceImpl.java

@@ -648,9 +648,11 @@ public InlongGroupInfo doDeleteCheck(String groupId, String operator) {
                     String.format("current group status=%s was not allowed to delete", curState));
         }
 
-        // If the status not allowed deleting directly, you need to delete the related "inlong_stream" first,
+        // If the status does not allow deleting directly, and the group mode is STANDARD,
+        // you need to delete the related "inlong_stream" first.
         // otherwise, all associated info will be logically deleted.
-        if (GroupStatus.deleteStreamFirst(curState)) {
+        if (GroupStatus.deleteStreamFirst(curState)
+                && InlongConstants.STANDARD_MODE.equals(groupInfo.getInlongGroupMode())) {
             int count = streamService.selectCountByGroupId(groupId);
             if (count >= 1) {
                 throw new BusinessException(ErrorCodeEnum.GROUP_DELETE_HAS_STREAM,