boon/src/main/java/org/boon/cache/FastConcurrentReadLruLfuFifoCache.java
@Override
    public void remove( KEY key ) {
        CacheEntry<KEY, VALUE> entry = map.remove( key );
        if ( entry != null ) {
            list.remove( entry );
        }
    }
@Override
    public void remove( KEY key ) {
        CacheEntry<KEY, VALUE> entry = map.remove( key );
        if ( entry != null ) {
            list.remove( entry );
        }
    }
Remove the key. This touches the lock.
So removes are **not** fast.
@param key key