How can I disable the auto discovery any devices added in vCenter

Document ID : KB000122454
Last Modified Date : 05/12/2018
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We applied the solution to have them in default as Maintenance Mode. However when we are doing device inventories and other considerations we have been facing issues and want to explore the possibility to turn this option off completely and disable the option to auto discovery any devices added in vCenter. 
It would be an enhancement to disable the auto discovery in Spectrum of devices added in vCenter.