9704 move socket functions to libc

*** 22,33 ****
  /*
   * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
- #pragma ident   "%Z%%M% %I%     %E% SMI"
- 
  #include <sys/sockio.h>
  #include <unistd.h>
  
  #pragma weak sockatmark = _sockatmark
  
--- 22,31 ----