rec: Delete ununsed fields from mbbxDirect record types

LALM was being initialized but is not otherwise used.

src/std/rec/mbbiDirectRecord.c

@@ -159,7 +159,6 @@ static long init_record(mbbiDirectRecord *prec, int pass)
         refresh_bits(prec, 0);
     }
     prec->mlst = prec->val;
-    prec->lalm = prec->val;
     prec->oraw = prec->rval;
     return(0);
 }

src/std/rec/mbboDirectRecord.c

@@ -142,7 +142,6 @@ static long init_record(mbboDirectRecord *prec, int pass)
 	} else if (status == 2) status = 0;
     }
     prec->mlst = prec->val;
-    prec->lalm = prec->val;
     prec->oraw = prec->rval;
     prec->orbv = prec->rbv;
     return(status);