remove the code to silence lint

Warning facilities on recent compilers are incredibly improved,
so the code to silence "good-old" lint is much less sense.

src/invent.c

@@ -2561,11 +2561,7 @@ xprname(struct obj *obj,
         long cost,       /* cost (for inventory of unpaid or expended items) */
         long quan)       /* if non-0, print this quantity, not obj->quan */
 {
-#ifdef LINT /* handle static char li[BUFSZ]; */
-    char li[BUFSZ];
-#else
     static char li[BUFSZ];
-#endif
     boolean use_invlet = (flags.invlet_constant
                           && let != CONTAINED_SYM && let != HANDS_SYM);
     long savequan = 0;