ISDN: remove kernel 2.0 code

From: Adrian Bunk <bunk@fs.tum.de>

The patch below removes #if'd kernel 2.0 code from
drivers/isdn/divert/divert_init.c.

drivers/isdn/divert/divert_init.c

@@ -51,9 +51,6 @@ static int __init divert_init(void)
      printk(KERN_WARNING "dss1_divert: error %d registering module, not loaded\n",i);
      return(-EIO);
    } 
-#if (LINUX_VERSION_CODE < 0x020111)
-  register_symtab(0);
-#endif
   printk(KERN_INFO "dss1_divert module successfully installed\n");
   return(0);
 }