[gnome-shell] introspect: Use MetaContext:unsafe-mode instead of setting

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

commit 317f0f5fe063356e961006fd75a9c8d9a38f47ce
Author: Florian Müllner <fmuellner gnome org>
Date:   Wed Sep 1 21:18:42 2021 +0200

    introspect: Use MetaContext:unsafe-mode instead of setting
    
    The property was added precisely for this purpose, except that its
    name isn't tied to the introspect API.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/3943
    
    Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1970>

 js/misc/introspect.js | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)
---
diff --git a/js/misc/introspect.js b/js/misc/introspect.js
index 3cb021cb1f..8e469fbea3 100644
--- a/js/misc/introspect.js
+++ b/js/misc/introspect.js
@@ -1,8 +1,6 @@
 /* exported IntrospectService */
 const { Gio, GLib, Meta, Shell, St } = imports.gi;
 
-const INTROSPECT_SCHEMA = 'org.gnome.shell';
-const INTROSPECT_KEY = 'introspect';
 const APP_ALLOWLIST = [
     'org.freedesktop.impl.portal.desktop.gtk',
     'org.freedesktop.impl.portal.desktop.gnome',
@@ -36,10 +34,6 @@ var IntrospectService = class {
                                     this._syncRunningApplications();
                                 });
 
-        this._introspectSettings = new Gio.Settings({
-            schema_id: INTROSPECT_SCHEMA,
-        });
-
         let tracker = Shell.WindowTracker.get_default();
         tracker.connect('notify::focus-app',
                         () => {
@@ -73,10 +67,6 @@ var IntrospectService = class {
         return app.get_windows().some(w => w.transient_for == null);
     }
 
-    _isIntrospectEnabled() {
-        return this._introspectSettings.get_boolean(INTROSPECT_KEY);
-    }
-
     _isSenderAllowed(sender) {
         return [...this._allowlistMap.values()].includes(sender);
     }
@@ -138,7 +128,7 @@ var IntrospectService = class {
     }
 
     _checkInvocation(invocation) {
-        if (this._isIntrospectEnabled())
+        if (global.context.unsafe_mode)
             return;
 
         if (this._isSenderAllowed(invocation.get_sender()))