Tidy the following test codes
- Remove channel in newTestServer
- Remove newTestServerWithMeta
- Remove newTestServer2
- Remove testDataCoordBase
- Use the same func for handleTTmsg and handleRPCTTmsg
See also: #31620
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Signed-off-by: yangxuan <xuan.yang@zilliz.com>
This PR introduces novel managerial roles for importv2:
1. ImportMeta: To manage all the import tasks;
2. ImportScheduler: To process tasks and modify their states;
3. ImportChecker: To ascertain the completion of all tasks and instigate
relevant operations.
issue: https://github.com/milvus-io/milvus/issues/28521
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Signed-off-by: bigsheeper <yihao.dai@zilliz.com>