[PATCH] Whack some dead code

[Stan Shebs <stan@codesourcery.com>]

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A while back, Vladimir Prus noticed a chunk of dead code in 
trace_find_line_command; basically, if you don't have symbolic info, 
there is no plausible fallback for line numbers, you just have to give 
up.  Committed to trunk.

Stan

2010-03-29  Stan Shebs  <stan@codesourcery.com>

    * tracepoint.c (trace_find_line_command): Remove dead code.



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Index: tracepoint.c
===================================================================
RCS file: /cvs/src/src/gdb/tracepoint.c,v
retrieving revision 1.163
retrieving revision 1.164
diff -p -r1.163 -r1.164
*** tracepoint.c	29 Mar 2010 23:45:06 -0000	1.163
--- tracepoint.c	30 Mar 2010 00:19:43 -0000	1.164
*************** trace_find_line_command (char *args, int
*** 2043,2075 ****
        sals.sals[0] = sal;
      }
    else
!       {
        sals = decode_line_spec (args, 1);
        sal = sals.sals[0];
      }
    
    old_chain = make_cleanup (xfree, sals.sals);
    if (sal.symtab == 0)
!     {
!       printf_filtered ("TFIND: No line number information available");
!       if (sal.pc != 0)
! 	{
! 	  /* This is useful for "info line *0x7f34".  If we can't
! 	     tell the user about a source line, at least let them
! 	     have the symbolic address.  */
! 	  printf_filtered (" for address ");
! 	  wrap_here ("  ");
! 	  print_address (get_current_arch (), sal.pc, gdb_stdout);
! 	  printf_filtered (";\n -- will attempt to find by PC. \n");
!   	}
!         else
!   	{
! 	  printf_filtered (".\n");
! 	  return;		/* No line, no PC; what can we do?  */
!   	}
!     }
!   else if (sal.line > 0
! 	   && find_line_pc_range (sal, &start_pc, &end_pc))
      {
        if (start_pc == end_pc)
    	{
--- 2043,2058 ----
        sals.sals[0] = sal;
      }
    else
!     {
        sals = decode_line_spec (args, 1);
        sal = sals.sals[0];
      }
    
    old_chain = make_cleanup (xfree, sals.sals);
    if (sal.symtab == 0)
!     error (_("No line number information available."));
! 
!   if (sal.line > 0 && find_line_pc_range (sal, &start_pc, &end_pc))
      {
        if (start_pc == end_pc)
    	{