[gtk+] Drop no-longer-existing debug keys from the docs

[Matthias Clasen <matthiasc src gnome org>]

commit 0443892bc7da4acd215c2aa7781baddff5ca50a7
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Jan 9 23:15:33 2018 -0500

    Drop no-longer-existing debug keys from the docs
    
    There is no draw or nogl value for GDK_DEBUG.

 docs/reference/gtk/running.sgml |    8 --------
 1 files changed, 0 insertions(+), 8 deletions(-)
---
diff --git a/docs/reference/gtk/running.sgml b/docs/reference/gtk/running.sgml
index 5ef674e..70de484 100644
--- a/docs/reference/gtk/running.sgml
+++ b/docs/reference/gtk/running.sgml
@@ -295,10 +295,6 @@ nevertheless.
       <listitem><para>Information about drag-and-drop</para></listitem>
     </varlistentry>
     <varlistentry>
-      <term>draw</term>
-      <listitem><para>Information about drawing operations (only win32)</para></listitem>
-    </varlistentry>
-    <varlistentry>
       <term>eventloop</term>
       <listitem><para>Information about event loop operation (mostly Quartz)</para></listitem>
     </varlistentry>
@@ -307,10 +303,6 @@ nevertheless.
       <listitem><para>Miscellaneous information</para></listitem>
     </varlistentry>
     <varlistentry>
-      <term>nogl</term>
-      <listitem><para>Turn off OpenGL. GDK will behave as if OpenGL support was not 
available.</para></listitem>
-    </varlistentry>
-    <varlistentry>
       <term>nograbs</term>
       <listitem><para>Turn off all pointer and keyboard grabs</para></listitem>
     </varlistentry>