Revert a grischka patch: gdb refused to know "main"

It is a strange patch because before this commit a gdb is working well
and after this commit there is exactly the same problem on Linux:
gdb refuses to know "main"

    Author: grischka <grischka>
    Date:   Tue Feb 5 21:18:29 2013 +0100
    tccelf: fix debug section relocation
    With:
       tcc -g hello.c
       gdb a.out
         b main
    gdb refused to know "main" because of broken dwarf info.

1 files changed, 1 insertions, 1 deletions

diff --git a/tccelf.c b/tccelf.c
index 2b07f60..419a0e1 100644
--- a/tccelf.c
+++ b/tccelf.c
@@ -2302,7 +2302,7 @@ static int final_sections_reloc(TCCState *s1)
     /* XXX: ignore sections with allocated relocations ? */
     for(i = 1; i < s1->nb_sections; i++) {
         s = s1->sections[i];
-        if (s->reloc && s != s1->got)
+        if (s->reloc && s != s1->got && (s->sh_flags & SHF_ALLOC)) //gr
             relocate_section(s1, s);
     }