doc: update release notes for Go 1.9.5

Change-Id: Idf88d289bac9603d852a9d19eb4b764f8589f8d9
Reviewed-on: https://go-review.googlesource.com/103159Reviewed-by: Andrew Bonventre <andybons@golang.org>

doc/devel/release.html

@@ -82,8 +82,7 @@ See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.9.4">Go
 </p>
 
 <p>
-go1.9.5 (released 2018/03/28) includes fixes to the compiler, go command,
-and the <code>net</code> package.
+go1.9.5 (released 2018/03/28) includes fixes to the compiler and go command.
 See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.9.5">Go
 1.9.5 milestone</a> on our issue tracker for details.
 </p>