[gnome-shell] screenshot: Remove _dragDevice

[Marge Bot <marge-bot src gnome org>]

commit 0d1f6b0eb9a39882e441de793a68bf1e9064560e
Author: Ivan Molodetskikh <yalterz gmail com>
Date:   Mon Jan 31 11:49:40 2022 +0300

    screenshot: Remove _dragDevice
    
    It went unused since
    https://gitlab.gnome.org/GNOME/gnome-shell/-/commit/21cc534add54761bf19fe402ddb71af72bdc922c
    
    Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2139>

 js/ui/screenshot.js | 5 -----
 1 file changed, 5 deletions(-)
---
diff --git a/js/ui/screenshot.js b/js/ui/screenshot.js
index c0e0cfd444..5c338120e1 100644
--- a/js/ui/screenshot.js
+++ b/js/ui/screenshot.js
@@ -236,7 +236,6 @@ var UIAreaSelector = GObject.registerClass({
         // Clutter.BUTTON_SECONDARY or the string "touch" to identify the source
         // of the drag operation.
         this._dragButton = 0;
-        this._dragDevice = null;
         this._dragSequence = null;
 
         this._areaIndicator = new UIAreaIndicator();
@@ -384,7 +383,6 @@ var UIAreaSelector = GObject.registerClass({
         }
 
         this._dragButton = 0;
-        this._dragDevice = null;
         this._dragSequence = null;
 
         if (this._dragCursor === Meta.Cursor.CROSSHAIR &&
@@ -497,10 +495,7 @@ var UIAreaSelector = GObject.registerClass({
         }
 
         if (this._dragButton) {
-            const device = event.device;
-
             this._dragGrab = global.stage.grab(this);
-            this._dragDevice = device;
             this._dragSequence = sequence;
 
             this.emit('drag-started');