This depends on your goals
One could say that ground vehicles became obsolete the day carpet bombing was invented. So, why do we still have vehicles, or even infantry?
Because war is usually about more than 100% destruction. You don't want to ruin a city, you want to force your enemy to relinquish it so you can use it. The same is true for mines, transport hubs... heck, even the population is useful. Slave labor, you know.
So, unless you're going to invest in a lot of Clarkean Magic (...indistinguishable from magic) then you won't have the precision necessary to surgically destroy only what you want from space. Think about it. Really precise energy discharges. You can carpet the skies with satelites so that you have thousands (if not millions) of directed energy weapons slowly picking off people and disabling defenses...
But eventually you need boots on the ground to sieze control, plant your flag, and declare Emporer G'hurzak the supreme ruler of the world. Then you need to invest in a new government, bureaucracy, transport, police & emergency... (and don't forget teachers. The Propaganda Ministry hates it when nobody uses their stuff).
Even if all you plan to do is strip mine the place, you need to move people around.
But, this really depends on what you mean by "ground vehicles"
Of course, you could suggest that nobody uses wheels. All your vehicles are hover craft, so there are no actual ground vehicles. Unless you declare hover craft to be ground vehicles... then you could claim that short-range limited-altitude transport are ground craft... It all depends on your point of view.
So, what this really boils down to is that (in my humble opinion), there will always be a reason for troop transport, mass transit, and status symbols to move people from point A to point B. They'll range in size (as they do today) from luxury automobiles to bicycles to buses to trucks to planes...
In short, whether or not wheels and treads are involved doesn't change the fact that what they do for us today will be a service that is always needed.
So, yes, you'll always need ground vehicles.
Unless you have billions of Star Trek transport pads.... Then, maybe, you won't need ground vehicles anymore. Seems like a lot of work just to get your kid to give up his Camaro.