[Bug]: drop useless code of bt

[xiaoleizi2016]

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Environment

No response

Fast Reproduce Steps

in the method "int ObDbConfigProcessor::handle_bt_sdk() "

int ret = OB_SUCCESS;
ret = OB_ERR_UNEXPECTED;
LOG_ERROR("not support beyond trust password", K(ret));
return ret;

Actual Behavior

"ret = OB_SUCCESS" is useless

Expected Behavior

No response

Other Information

No response