exception bactrace in reverse order is Ruby 2.5 feature

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66531 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

NEWS

@@ -43,9 +43,6 @@ sufficient information, see the ChangeLog file or Redmine
 
     user = users.find {|user| cond(user) }
 
-* Print exception backtrace and error message in reverse order when the
-  exception is not caught and STDOUT is unchanged and a tty. [Feature #8661]
-
 * Print +cause+ of the exception if the exception is not caught and printed
   its backtraces and error message. [Feature #8257]