docs: void remove(CmsFlexCacheKey key) {
  
          if (!isEnabled()) {
              return;
          }
          CmsFlexCacheVariation o = m_keyCache.get(key.getResource());
          if (o != null) {
              I_CmsLruCacheObject old = o.m_map.get(key.getVariation());
              if (old != null) {
                  getEntryLruCache().remove(old);
              }
          }
      }