Remove unused dependency on Pricenode metadata strings.

core/src/main/java/bisq/core/provider/price/PriceFeedService.java

@@ -394,21 +394,17 @@ private void requestAllPrices(PriceProvider provider, Runnable resultHandler, Fa
         }
 
         priceRequest = new PriceRequest();
-        SettableFuture<Tuple2<Map<String, Long>, Map<String, MarketPrice>>> future = priceRequest.requestAllPrices(provider);
+        SettableFuture<Map<String, MarketPrice>> future = priceRequest.requestAllPrices(provider);
         Futures.addCallback(future, new FutureCallback<>() {
             @Override
-            public void onSuccess(@Nullable Tuple2<Map<String, Long>, Map<String, MarketPrice>> result) {
+            public void onSuccess(@Nullable Map<String, MarketPrice> result) {
                 UserThread.execute(() -> {
                     checkNotNull(result, "Result must not be null at requestAllPrices");
                     // Each currency rate has a different timestamp, depending on when
                     // the priceNode aggregate rate was calculated
                     // However, the request timestamp is when the pricenode was queried
                     epochInMillisAtLastRequest = System.currentTimeMillis();
-
-                    Map<String, MarketPrice> priceMap = result.second;
-
-                    cache.putAll(priceMap);
-
+                    cache.putAll(result);
                     resultHandler.run();
                 });
             }

core/src/main/java/bisq/core/provider/price/PriceProvider.java

@@ -48,9 +48,9 @@ public PriceProvider(HttpClient httpClient, String baseUrl) {
         super(httpClient, baseUrl, false);
     }
 
-    public Tuple2<Map<String, Long>, Map<String, MarketPrice>> getAll() throws IOException {
+    public Map<String, MarketPrice> getAll() throws IOException {
         if (shutDownRequested) {
-            return new Tuple2<>(new HashMap<>(), new HashMap<>());
+            return new HashMap<>();
         }
 
         Map<String, MarketPrice> marketPriceMap = new HashMap<>();
@@ -61,13 +61,7 @@ public Tuple2<Map<String, Long>, Map<String, MarketPrice>> getAll() throws IOExc
         String json = httpClient.get("getAllMarketPrices", "User-Agent", "bisq/"
                 + Version.VERSION + hsVersion);
 
-
         LinkedTreeMap<?, ?> map = new Gson().fromJson(json, LinkedTreeMap.class);
-        Map<String, Long> tsMap = new HashMap<>();
-        tsMap.put("btcAverageTs", ((Double) map.get("btcAverageTs")).longValue());
-        tsMap.put("poloniexTs", ((Double) map.get("poloniexTs")).longValue());
-        tsMap.put("coinmarketcapTs", ((Double) map.get("coinmarketcapTs")).longValue());
-
         List<?> list = (ArrayList<?>) map.get("data");
         list.forEach(obj -> {
             try {
@@ -83,7 +77,7 @@ public Tuple2<Map<String, Long>, Map<String, MarketPrice>> getAll() throws IOExc
             }
 
         });
-        return new Tuple2<>(tsMap, marketPriceMap);
+        return marketPriceMap;
     }
 
     public String getBaseUrl() {

core/src/main/java/bisq/core/provider/price/PriceRequest.java

@@ -45,17 +45,17 @@ public class PriceRequest {
     public PriceRequest() {
     }
 
-    public SettableFuture<Tuple2<Map<String, Long>, Map<String, MarketPrice>>> requestAllPrices(PriceProvider provider) {
+    public SettableFuture<Map<String, MarketPrice>> requestAllPrices(PriceProvider provider) {
         this.provider = provider;
         String baseUrl = provider.getBaseUrl();
-        SettableFuture<Tuple2<Map<String, Long>, Map<String, MarketPrice>>> resultFuture = SettableFuture.create();
-        ListenableFuture<Tuple2<Map<String, Long>, Map<String, MarketPrice>>> future = executorService.submit(() -> {
+        SettableFuture<Map<String, MarketPrice>> resultFuture = SettableFuture.create();
+        ListenableFuture<Map<String, MarketPrice>> future = executorService.submit(() -> {
             Thread.currentThread().setName(Thread.currentThread().getName() + "@" + baseUrl);
             return provider.getAll();
         });
 
         Futures.addCallback(future, new FutureCallback<>() {
-            public void onSuccess(Tuple2<Map<String, Long>, Map<String, MarketPrice>> marketPriceTuple) {
+            public void onSuccess(Map<String, MarketPrice> marketPriceTuple) {
                 log.trace("Received marketPriceTuple of {}\nfrom provider {}", marketPriceTuple, provider);
                 if (!shutDownRequested) {
                     resultFuture.set(marketPriceTuple);