remove OSF1 support

cde/programs/dtlogin/daemon.c

@@ -77,16 +77,11 @@ BecomeDaemon( void )
      * Close standard file descriptors and get rid of controlling tty
      */
 
-#ifdef __osf__
-/* use setsid() instead of setpgrp() */
-    setsid();
-#else
 #if defined(SYSV) || defined (SVR4) || defined(linux)
     setpgrp ();
 #else
     setpgrp (0, getpid());
 #endif
-#endif /* __osf__ */
 
     close (0); 
     close (1);