[polari] userList: Drop custom icon from filter entry

[Florian Müllner <fmuellner src gnome org>]

commit e2da7f5f0be4c333bef78ebf1e9e57db5fecf6f7
Author: Florian Müllner <fmuellner gnome org>
Date:   Sat Oct 10 03:38:23 2020 +0200

    userList: Drop custom icon from filter entry
    
    We won't have access to the icon in GTK4, and it doesn't seem worth
    to implement our own search entry or hack around the limitation.
    
    Just go with the default.
    
    https://gitlab.gnome.org/GNOME/polari/-/merge_requests/174

 src/userList.js | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)
---
diff --git a/src/userList.js b/src/userList.js
index a9fb9c45..31df5f97 100644
--- a/src/userList.js
+++ b/src/userList.js
@@ -53,9 +53,7 @@ class UserListPopover extends Gtk.Popover {
         });
         this._box.add(this._userListBin);
 
-        this._entry = new Gtk.SearchEntry({
-            primary_icon_name: 'avatar-default-symbolic',
-        });
+        this._entry = new Gtk.SearchEntry();
         this._entry.connect('search-changed', this._updateFilter.bind(this));
         this._revealer.add(this._entry);