removed unnecessary sync in LRUCacheMap #592

redisson/src/main/java/org/redisson/misc/LRUCacheMap.java

@@ -41,20 +41,16 @@ public class LRUCacheMap<K, V> extends AbstractCacheMap<K, V> {
     
     @Override
     protected void onValueRemove(CachedValue value) {
-        synchronized (value) {
         queue.remove(value);
     }
-    }
     
     @Override
     protected void onValueRead(CachedValue value) {
         // move value to tail of queue 
-        synchronized (value) {
         if (queue.remove(value)) {
             queue.add(value);
         }
     }
-    }
 
     @Override
     protected void onMapFull() {