Specifies the type of system to be removed from the display. The type
  can be any of the valid system types as displayed in the HW_TYPE field.
  If the string which specifies the system type contains spaces, slashes
  or hyphens, then the string must be delimited by double quotation marks.
  If /TYPE=ALL is specified, then all nodes are removed from the display.

  Format:  REMOVE SYSTEMS/TYPE=(system-type,"system-type"[,...])
           REMOVE SYSTEMS/TYPE=ALL

  Examples:  REMOVE SYSTEMS/TYPE="VAX 9000"
             REMOVE SYSTEMS/TYPE=(HS70,"VAX 8300")