remove
Description:
Removes a child from this.
The child must have been added with [method@Gtk.Grid.attach] or [method@Gtk.Grid.attach_next_to].
Parameters:
| this | a `GtkGrid` | 
| child | the child widget to remove | 
Removes a child from this.
The child must have been added with [method@Gtk.Grid.attach] or [method@Gtk.Grid.attach_next_to].
| this | a `GtkGrid` | 
| child | the child widget to remove |