doc: remove draft notice from Go 1.10 release notes

Change-Id: I063b556b59ecb8a8f4a3f121c32982b90eee2d74
Reviewed-on: https://go-review.googlesource.com/94159Reviewed-by: Andrew Bonventre <andybons@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

doc/go1.10.html

@@ -15,12 +15,7 @@ Do not send CLs removing the interior tags from such phrases.
 ul li { margin: 0.5em 0; }
 </style>
 
-<h2 id="introduction">DRAFT RELEASE NOTES - Introduction to Go 1.10</h2>
-
-<p><strong>
-  Go 1.10 is not yet released. These are work-in-progress
-  release notes. Go 1.10 is expected to be released in February 2018.
-</strong></p>
+<h2 id="introduction">Introduction to Go 1.10</h2>
 
 <p>
 The latest Go release, version 1.10, arrives six months after <a href="go1.9">Go 1.9</a>.