[gnome-weather] Fix excess parameter warning

[Giovanni Campagna <gcampagna src gnome org>]

commit 1792209827bb9272557f2894c37f250e4251ea4d
Author: Giovanni Campagna <gcampagna src gnome org>
Date:   Wed Jun 28 10:42:52 2017 -0700

    Fix excess parameter warning

 src/app/weeklyForecast.js |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/app/weeklyForecast.js b/src/app/weeklyForecast.js
index b3b8f95..e2cb21f 100644
--- a/src/app/weeklyForecast.js
+++ b/src/app/weeklyForecast.js
@@ -91,7 +91,7 @@ const WeeklyForecastFrame = new Lang.Class({
                                      datetime.get_ymd()))
                     break;
 
-                let v = Math.abs(datetime.difference(day, best));
+                let v = Math.abs(datetime.difference(day));
                 if (best == null || v < diff) {
                     best = info;
                     diff = v;