remove dead store

dns/dns_dfd.c

@@ -53,7 +53,6 @@ int dns_domain_fromdot(char **out,const char *buf,size_t n)
     name[namelen++] = labellen;
     byte_copy(name + namelen,labellen,label);
     namelen += labellen;
-    labellen = 0;
   }
 
   if (namelen + 1 > sizeof name) return 0;

io/iob_write.c

@@ -5,15 +5,14 @@ int64 iob_write(int64 s,io_batch* b,io_write_callback cb) {
   uint64 total;
   int64 sent;
   long i;
-  int thatsit;
 
   if (b->bytesleft==0) return 0;
   last=(iob_entry*)(((char*)array_start(&b->b))+array_bytes(&b->b));
   total=0;
   if (!(e=array_get(&b->b,sizeof(iob_entry),b->next)))
     return -3;		/* can't happen error */
-  thatsit=0;
   for (i=0; e+i<last; ++i) {
+    int thatsit;
     if (!e[i].n) continue;
     if (e[i].type==FROMFILE)
       sent=io_mmapwritefile(s,e[i].fd,e[i].offset,e[i].n,cb);

str/str_diff.c

@@ -9,7 +9,6 @@ int str_diff(const char* a, const char* b) {
   register const unsigned char* s=(const unsigned char*)a;
   register const unsigned char* t=(const unsigned char*)b;
   register int j;
-  j=0;
   for (;;) {
     if ((j=(*s-*t))) break; if (!*t) break; ++s; ++t;
     if ((j=(*s-*t))) break; if (!*t) break; ++s; ++t;

textcode/fmt_yenc.c

@@ -37,7 +37,7 @@ dontescape:
     if (written>((size_t)-1)/2) return (size_t)-1;
   }
   if (linelen) {
-    if (dest) dest[written]='\n'; ++written; linelen=0;
+    if (dest) dest[written]='\n'; ++written;
   }
   return written;
 }