Removes
            a list of layers from a layer state
         
         (layerstate-removelayers layerstatename (list layername
layername layername ...))
 
         Arguments
         
- layerstatename
 
            - 
               
                  A string specifying the
                     name of the layer state to be updated.
                  
                
             - layername
 
            - 
               
                  A string specifying the
                     name of the layer state to be removed.
                  
                
             
         
         Return Values
         
         T if
            the remove is successful; otherwise nil
         Examples
         
         (layerstate-removelayers "myLayerState" (list "Walls" "Elec1" "Foundation" "Plumbing"))
T