[gnome-terminal] Revert "notebook: avoid crash on tab DND"

[Christian Persch <chpe src gnome org>]

commit c7281163d0bb6d998a9ee0e72bb15d0278ca12d8
Author: Christian Persch <chpe gnome org>
Date:   Tue Aug 9 21:31:51 2016 +0200

    Revert "notebook: avoid crash on tab DND"
    
    This reverts commit 85b448f7c9e219e82d4d8abafe405d73349c08c1.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=769161#c10

 src/terminal-notebook.c |    5 -----
 1 files changed, 0 insertions(+), 5 deletions(-)
---
diff --git a/src/terminal-notebook.c b/src/terminal-notebook.c
index b054676..9d488fc 100644
--- a/src/terminal-notebook.c
+++ b/src/terminal-notebook.c
@@ -152,13 +152,8 @@ terminal_notebook_remove_screen (TerminalMdiContainer *container,
   update_tab_visibility (notebook, -1);
 
   screen_container = terminal_screen_container_get_from_screen (screen);
-#if GTK_CHECK_VERSION(3, 16, 0)
-  gtk_notebook_detach_tab (GTK_NOTEBOOK (notebook),
-                           GTK_WIDGET (screen_container));
-#else
   gtk_container_remove (GTK_CONTAINER (notebook),
                         GTK_WIDGET (screen_container));
-#endif
 }
 
 static TerminalScreen *