By default, the Salient Page Builder does not allow you to hide the Rows Using the Responsive Options Tab like the VC Columns. You can however use any of these 4 classes and add them to the Row Extra Class Field to hide that row:
Note: This is just a hack and should be avoided if possible .
vc_hidden-lg vc_hidden-md vc_hidden-sm vc_hidden-xs
|vc_hidden-xs||Extra Small Screen|
It works in the same way the Column VC " Responsive Options" Work :