base: Remove the string logging from CHECK().

net/base/linked_hash_map.h

Index: net/base/linked_hash_map.h
diff --git a/net/base/linked_hash_map.h b/net/base/linked_hash_map.h
index 8397243958c18958c77e7681857146c416f6d214..965785af8a196f0c6a19af018e6924fac2688f23 100644
--- a/net/base/linked_hash_map.h
+++ b/net/base/linked_hash_map.h
@@ -139,8 +139,8 @@ class linked_hash_map {
   // map and list, a CHECK() error will occur.
   iterator erase(iterator position) {
     typename MapType::iterator found = map_.find(position->first);
-    CHECK(found->second == position)
-        << "Inconsisent iterator for map and list, or the iterator is invalid.";
+    // Inconsisent iterator for map and list, or the iterator is invalid.
+    CHECK(found->second == position);
 
     map_.erase(found);
     return list_.erase(position);
@@ -219,8 +219,8 @@ class linked_hash_map {
     typename ListType::iterator last = list_.end();
     --last;
 
-    CHECK(map_.insert(std::make_pair(pair.first, last)).second)
-        << "Map and list are inconsistent";
+    // Map and list are inconsistent
+    CHECK(map_.insert(std::make_pair(pair.first, last)).second);
 
     return std::make_pair(last, true);
   }