Fix seq to work correctly on "Specified" mode

On Specified mode is expected that when seq is processed the value from
DOL0 (fixed or links) is set on LNK0, if SELN = 0 (and OFFS = 0).

modules/database/src/std/rec/seqRecord.c

@@ -156,8 +156,6 @@ static long process(struct dbCommon *pcommon)
                 recGblSetSevr(prec, SOFT_ALARM, INVALID_ALARM);
                 return asyncFinish(prec);
             }
-            if (grpn == 0)
-                return asyncFinish(prec);
 
             lmask = 1 << grpn;
         }