[gedit] docs: Update how to switch between open files; delete outdated screenshot

[Andre Klapper <aklapper src gnome org>]

commit 2fa2202497368f0971142893ba48c54ebe17cb6b
Author: Andre Klapper <a9016009 gmx de>
Date:   Fri Sep 15 10:09:51 2017 +0200

    docs: Update how to switch between open files; delete outdated screenshot

 help/C/figures/gedit-side-pane2.png        |  Bin 1400 -> 0 bytes
 help/C/gedit-open-files-from-sidepane.page |    7 ++-----
 help/Makefile.am                           |    1 -
 3 files changed, 2 insertions(+), 6 deletions(-)
---
diff --git a/help/C/gedit-open-files-from-sidepane.page b/help/C/gedit-open-files-from-sidepane.page
index 6af5606..299d2e7 100644
--- a/help/C/gedit-open-files-from-sidepane.page
+++ b/help/C/gedit-open-files-from-sidepane.page
@@ -55,12 +55,9 @@
     <title>Using the side pane to switch between open files</title>
     <p>
       Once you have several files open, you can use the side pane to switch
-      between open files. To activate the file browser portion of the
-      <app>side pane</app>, click on the <gui>file</gui> icon at the bottom of
-      the <gui>side pane</gui>.
+      between open files. To list open files, choose <gui>Documents</gui>
+      from the dropdown at the top of the pane.
     </p>
-    
-    <media type="image" mime="image/png" src="figures/gedit-side-pane2.png" its:translate="no" />
 
     <p>
       Clicking on any file name in the <gui>side pane</gui> will open that file
diff --git a/help/Makefile.am b/help/Makefile.am
index 70cd602..b251a7b 100644
--- a/help/Makefile.am
+++ b/help/Makefile.am
@@ -9,7 +9,6 @@ HELP_MEDIA = \
        figures/gedit-new-external-tool.png \
        figures/gedit-open-location.png \
        figures/gedit3-screenshot.png \
-       figures/gedit-side-pane2.png \
        figures/gedit-side-pane3.png
 
 HELP_FILES = \