fixes

Author: hzhdlrp

libraries/multi_index_lru/include/userver/multi_index_lru/container.hpp

@@ -66,9 +66,6 @@ template<
 >
 class LRUCacheContainer {
 public:
-    using iterator = typename Container::iterator;
-    using const_iterator = typename Container::const_iterator;
-
     explicit LRUCacheContainer(size_t max_size) : max_size(max_size) {}
 
     template<typename... Args>
@@ -147,13 +144,6 @@ class LRUCacheContainer {
     void clear() {
         container.clear();
     }
-
-    iterator begin() { return container.begin(); }
-    iterator end() { return container.end(); }
-    const_iterator begin() const { return container.begin(); }
-    const_iterator end() const { return container.end(); }
-    const_iterator cbegin() const { return container.cbegin(); }
-    const_iterator cend() const { return container.cend(); }
 
 private:
     using CacheItem = impl::ValueWithHook<Value>;