Remove stl_util's deletion functions.

BUG=555865

Review-Url: https://codereview.chromium.org/2580793003
Cr-Commit-Position: refs/heads/master@{#439134}

PRESUBMIT.py

@@ -307,15 +307,6 @@ _BANNED_CPP_FUNCTIONS = (
       True,
       (),
     ),
-    (
-      r'STLDeleteValues',  # http://crbug.com/555865
-      (
-        'This call is obsolete with C++ 11; create a map with owning',
-        'pointers instead (e.g. std::map<std::string, std::unique_ptr<x>> ).',
-      ),
-      True,
-      (),
-    ),
 )
 
 

base/stl_util.h

@@ -54,26 +54,6 @@ inline char* string_as_array(std::string* str) {
   return str->empty() ? NULL : &*str->begin();
 }
 
-// The following function is useful for cleaning up STL containers whose
-// elements point to allocated memory.
-
-// Given an STL container consisting of (key, value) pairs, STLDeleteValues
-// deletes all the "value" components and clears the container.  Does nothing
-// in the case it's given a NULL pointer.
-template <class T>
-void STLDeleteValues(T* container) {
-  if (!container)
-    return;
-
-  for (auto it = container->begin(); it != container->end();) {
-    auto temp = it;
-    ++it;
-    delete temp->second;
-  }
-
-  container->clear();
-}
-
 // Test to see if a set, map, hash_set or hash_map contains a particular key.
 // Returns true if the key is in the collection.
 template <typename Collection, typename Key>