internal: go mod tidy

Change-Id: Id9eee465e1aa95f9af14049d90c8558cf43bd71a
Reviewed-on: https://code-review.googlesource.com/c/gocloud/+/45310
Reviewed-by: Cody Oss <codyoss@google.com>
diff --git a/go.mod b/go.mod
index b20e18d..7991cf0 100644
--- a/go.mod
+++ b/go.mod
@@ -19,7 +19,6 @@
 	golang.org/x/net v0.0.0-20190620200207-3b0461eec859
 	golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45
 	golang.org/x/text v0.3.2
-	golang.org/x/time v0.0.0-20190308202827-9d24e82272b4
 	golang.org/x/tools v0.0.0-20190628153133-6cdbf07be9d0
 	google.golang.org/api v0.9.0
 	google.golang.org/genproto v0.0.0-20190905072037-92dd089d5514