[gnome-shell/wip/fmuellner/more-minor-bug-fixes: 5/7] screenshot: Remove bogus parameter

[Florian Müllner <fmuellner src gnome org>]

commit 43fb2b38b1a9bc3888ab1970d61aeac6f18b8eb7
Author: Florian Müllner <fmuellner gnome org>
Date:   Mon Feb 4 11:58:00 2019 +0100

    screenshot: Remove bogus parameter
    
    Expecting a callback argument over D-Bus doesn't make any sense at
    all, whoops.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/388

 js/ui/screenshot.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/js/ui/screenshot.js b/js/ui/screenshot.js
index f0e1c4825..a314dfcea 100644
--- a/js/ui/screenshot.js
+++ b/js/ui/screenshot.js
@@ -106,7 +106,7 @@ var ScreenshotService = class {
     }
 
     ScreenshotAreaAsync(params, invocation) {
-        let [x, y, width, height, flash, filename, callback] = params;
+        let [x, y, width, height, flash, filename] = params;
         [x, y, width, height] = this._scaleArea(x, y, width, height);
         if (!this._checkArea(x, y, width, height)) {
             invocation.return_error_literal(Gio.IOErrorEnum,