10132 smatch fixes for MDB
Reviewed by: Andy Fiddaman <andy@omniosce.org>

@@ -307,12 +307,10 @@
                 p += mdb_snprintf(p, (size_t)(end - p), "|IC");
 
         /*
          * Decode precision, rounding, and infinity options in control word.
          */
-        if (cw & FPSIG24)
-                p += mdb_snprintf(p, (size_t)(end - p), "|SIG24");
         if (cw & FPSIG53)
                 p += mdb_snprintf(p, (size_t)(end - p), "|SIG53");
         if (cw & FPSIG64)
                 p += mdb_snprintf(p, (size_t)(end - p), "|SIG64");