Make list constructor usable without list-inl.h header.

src/list-inl.h

Index: src/list-inl.h
diff --git a/src/list-inl.h b/src/list-inl.h
index 47653ef145bdc0ae2b53a2a2004d4c96506672ee..94ef14dbaedba2f1ef1f76f02ae2e563880d0219 100644
--- a/src/list-inl.h
+++ b/src/list-inl.h
@@ -245,15 +245,6 @@ void List<T, P>::StableSort() {
 }
 
 
-template <typename T, class P>
-void List<T, P>::Initialize(int capacity, P allocator) {
-  DCHECK(capacity >= 0);
-  data_ = (capacity > 0) ? NewData(capacity, allocator) : NULL;
-  capacity_ = capacity;
-  length_ = 0;
-}
-
-
 template <typename T, typename P>
 int SortedListBSearch(const List<T>& list, P cmp) {
   int low = 0;