remove myself from steve's article

Now I have no way to mark myself as a translator.  So I'll simply remove
my name.

content/post/steve-summit-article-ub.md

@@ -8,7 +8,7 @@ This is a Chinese translation of Steve's
 [original post](http://www.eskimo.com/~scs/readings/undef.950321.html)
 about undefined behavior.
 """
-authors = ['scs', 'xry111']
+authors = ['scs']
 +++
 
 原作者 Steve Summit, [原文链接](http://www.eskimo.com/~scs/readings/undef.950321.html)