doc/go1.14: remove TODO about Dragonfly passing

Both the Dragonfly release and tip builder have been passing for a
while. The net package's interface API is working on both builders since
CL 202317 which has been re-vendored in CL 202438.

Updates #34368
Updates #36878

Change-Id: I187178b3a59f2604187af453207fb4e24a56105c
Reviewed-on: https://go-review.googlesource.com/c/go/+/217358
Reviewed-by: Ian Lance Taylor <[email protected]>

Author: tklauser

doc/go1.14.html

@@ -52,12 +52,6 @@ <h2 id="language">Changes to the language</h2>
 
 <h2 id="ports">Ports</h2>
 
-<p>
-  TODO: is Dragonfly passing? On both Dragonfly release & tip? (ABI
-  change happened) Does the net package's interface APIs work on both?
-  https://golang.org/issue/34368.
-</p>
-
 <p>
   TODO: is Illumos up with a builder and passing?
   https://golang.org/issue/15581.