warning workaround led to a build error on some platforms & compilers

Use another method for the warning workaround.

allmain.c:33:56: error: 'maybe_unused' attribute cannot be applied to types
   33 | early_init(int argc USED_FOR_CRASHREPORT, char *argv[] USED_FOR_CRASHREPORT)
      |                                                        ^
allmain.c:28:30: note: expanded from macro 'USED_FOR_CRASHREPORT'
   28 | #define USED_FOR_CRASHREPORT UNUSED
      |                              ^
../include/tradstdc.h:510:16: note: expanded from macro 'UNUSED'
  510 | #define UNUSED ATTRUNUSED
      |                ^
../include/tradstdc.h:397:22: note: expanded from macro 'ATTRUNUSED'
  397 | #define ATTRUNUSED [[maybe_unused]]
      |                      ^
allmain.c:33:49: warning: unused parameter 'argv' [-Wunused-parameter]
   33 | early_init(int argc USED_FOR_CRASHREPORT, char *argv[] USED_FOR_CRASHREPORT)
      |                                                 ^
1 warning and 1 error generated.

src/allmain.c

@@ -22,15 +22,9 @@ staticfn void regen_pw(int);
 staticfn void regen_hp(int);
 staticfn void interrupt_multi(const char *);
 
-#ifdef CRASHREPORT
-#define USED_FOR_CRASHREPORT
-#else
-#define USED_FOR_CRASHREPORT UNUSED
-#endif
-
 /*ARGSUSED*/
 void
-early_init(int argc USED_FOR_CRASHREPORT, char *argv[] USED_FOR_CRASHREPORT)
+early_init(int argc, char *argv[])
 {
     program_state_init();
 #ifdef CRASHREPORT
@@ -42,6 +36,8 @@ early_init(int argc USED_FOR_CRASHREPORT, char *argv[] USED_FOR_CRASHREPORT)
     monst_globals_init();
     sys_early_init();
     runtime_info_init();
+    nhUse(argc);
+    nhUse(argv[0]);
 }
 
 staticfn void