Only update FishKeys timestamp when creating the key (#25)

src/chanprog.c

@@ -958,7 +958,6 @@ void set_fish_key(char *target, bd::String key)
     }
 
     // Set the key
-    fishData->timestamp = now;
     FishKeys[target] = fishData;
   }
 }

src/mod/server.mod/servmsg.c

@@ -177,7 +177,6 @@ static int check_bind_raw(char *from, char *code, char *msg)
 
         if (FishKeys.contains(key_target)) {
           sharedKey = FishKeys[key_target]->sharedKey;
-          FishKeys[key_target]->timestamp = now;
         } else {
           struct userrec *u = get_user_by_host(from);
           if (u) {