Remove stale comment for scoped_refptr comparison operators.

base/memory/ref_counted.h

Index: base/memory/ref_counted.h
diff --git a/base/memory/ref_counted.h b/base/memory/ref_counted.h
index a1c12696990d37e6d346069afd4b71096ad116db..80fb0bde3b7441eb3a5e3718dbc439a366c89e1e 100644
--- a/base/memory/ref_counted.h
+++ b/base/memory/ref_counted.h
@@ -416,8 +416,6 @@ scoped_refptr<T> make_scoped_refptr(T* t) {
   return scoped_refptr<T>(t);
 }
 
-// Temporary operator overloads to facilitate the transition. See
-// https://crbug.com/110610.
 template <typename T, typename U>
 bool operator==(const scoped_refptr<T>& lhs, const U* rhs) {
   return lhs.get() == rhs;