In 3d studio max go to Script > listener or hit F11 then select all objects and in the white field delete everything and type : deleteModifier $ 1 and hit Enter.
If your Modifiers are instanced, you can select all objects and delete the Modifier. If not, you'll need a script like Vig said. Something like this should do the trick: for o in objects do(for m in o.modifiers where m.name == turbosmooth do deleteModifier m) (off the top of my head...not tested ;) )
Not within max alone, but there probably are a lot of scripts out there that can do this, one could be written for this particular case also. Check out: http://www.scriptspot.com/3ds-max/modifier-modifier-zorb This lets you edit the properties of a lot of objects including their modifiers, I haven't used it to remove…