[gtk+] docs: Remove gtk_application_is_inhibited

[Matthias Clasen <matthiasc src gnome org>]

commit 5c1a46c149fff869672e5a2af8fe359441869615
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Dec 1 14:58:33 2017 -0800

    docs: Remove gtk_application_is_inhibited
    
    It doesn't exist anymore.

 docs/reference/gtk/gtk4-sections.txt |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/docs/reference/gtk/gtk4-sections.txt b/docs/reference/gtk/gtk4-sections.txt
index 220bb62..e4d3069 100644
--- a/docs/reference/gtk/gtk4-sections.txt
+++ b/docs/reference/gtk/gtk4-sections.txt
@@ -6015,7 +6015,6 @@ gtk_application_get_active_window
 GtkApplicationInhibitFlags
 gtk_application_inhibit
 gtk_application_uninhibit
-gtk_application_is_inhibited
 
 <SUBSECTION>
 gtk_application_prefers_app_menu