[gegl] docs: remove a mention of gegl's ui

[Michael Henning <mhenning src gnome org>]

commit 0f650dc388773573a97bac22e182e6a5c82fa1a5
Author: Michael Henning <drawoc darkrefraction com>
Date:   Sun Apr 21 18:05:45 2013 -0400

    docs: remove a mention of gegl's ui

 docs/commandline.txt | 4 ----
 1 file changed, 4 deletions(-)
---
diff --git a/docs/commandline.txt b/docs/commandline.txt
index 1530df0..91033e8 100644
--- a/docs/commandline.txt
+++ b/docs/commandline.txt
@@ -22,10 +22,6 @@ Render a composition to a PNG file:
 
  $ gegl composition.xml -o composition.png
 
-Invoke gegl like a viewer for gegl compositions:
-
- $ gegl -ui -d 5 composition.xml
-
 Using gegl with png's passing through stdin/stdout piping.
 
  $ cat input.png | gegl -o - -x "<gegl>