go.tools/dashboard/builder: fix imported by not used error

Update golang/go#7372 This slipped into the build in revision 4b4229fc616b. Thanks to @pierredurand87 for noticing the break. LGTM=bgarcia R=golang-codereviews, bgarcia CC=golang-codereviews https://golang.org/cl/66670043
golang · Feb 22, 2014 · 1c1af4b · 1c1af4b
1 parent 61bd98e
commit 1c1af4b
Showing 1 changed file with 0 additions and 1 deletion.
diff --git a/dashboard/builder/env.go b/dashboard/builder/env.go
@@ -7,7 +7,6 @@ package main
 import (
 	"bytes"
 	"fmt"
-	"io"
 	"io/ioutil"
 	"os"
 	"path/filepath"