If you don't want SMARTSENSE in your cluster but still it comes as default selected component during install wizard then go through below steps to save yourself some trouble.
Tried on HDP Version : 3.0 and 3.1
Goto below path on the ambari-server node:
Open the above file in editor mode (e.g. vi)
Uncomment or delete the below line [Line 23 may vary in different release]
After making the above change restart ambari-server and proceed with cluster install wizard.
Now SMARTSENSE won't be a mandate component.
Thanks for reading.