code: public static <MK> void removeAtomicMap(Cache<MK, ?> cache, MK key) {
        // This removes any entry from the cache but includes special handling for fine-grained maps
        FineGrainedAtomicMapProxyImpl.removeMap((Cache<Object, Object>) cache, key);
     }
docs: Removes the atomic map associated with the given key from the underlying cache.
  
  @param cache underlying cache
  @param key   key under which the atomic map exists
  @param <MK>  key param of the cache