INT 2F - DESQview v2.26+ External Device Interface - REMOVE PROCESS
        AX = DE05h
        BX = mapping context of process
        DX = handle of last task in process
Return: nothing
Notes:  XMS XDI handler releases the structure allocated by AX=DE04h
        driver should pass this call to previous handler before processing it
        all DOS, BIOS, and DV API calls except those generating a task switch
          are valid in handler
SeeAlso: AX=DE07h,INT 15/AX=5402h