[gimp-help-2] Remove link to 'Alpha to Logo' from Filters intro

[Alexandre Prokoudine <aprokoudine src gnome org>]

commit 5e5a02fd6db9cf89271a4ca766ad2623677d6bd4
Author: Alexandre Prokoudine <alexandre prokoudine gmail com>
Date:   Fri May 4 06:30:02 2018 +0300

    Remove link to 'Alpha to Logo' from Filters intro

 src/filters/introduction.xml |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)
---
diff --git a/src/filters/introduction.xml b/src/filters/introduction.xml
index 1bd3ac7..d33bfa5 100644
--- a/src/filters/introduction.xml
+++ b/src/filters/introduction.xml
@@ -74,9 +74,6 @@
     <listitem>
       <para><xref linkend="filters-animation"/></para>
     </listitem>
-    <listitem>
-      <para><xref linkend="filters-alpha-to-logo"/></para>
-    </listitem>
   </itemizedlist>
 
   <sect2>