We don't use timing_level any more after: 
9cf00977da0 "drm/edid: Unify
detailed block parsing between base and extension blocks".
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
        char *edid_ext = NULL;
        struct detailed_timing *timing;
        int start_offset, end_offset;
-       int timing_level;
 
        if (edid->version == 1 && edid->revision < 3)
                return 0;
                return 0;
        }
 
-       timing_level = standard_timing_level(edid);
        end_offset = EDID_LENGTH;
        end_offset -= sizeof(struct detailed_timing);
        for (i = start_offset; i < end_offset;